### Initialize QBP_Q15 Segments

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_281.verified.txt

Sets up the standard segments for the QBP_Q15 message, including MSH, SFT, UAC, QPD, Hxx, RCP, and DSC. Handles potential HL7 exceptions during setup.

```csharp
///<summary>
/// initialize method for QBP_Q15.  This does the segment setup for the message. 
///</summary> 
private void init(IModelClassFactory factory) {
   try {
      this.add(typeof(MSH), true, false);
      this.add(typeof(SFT), false, true);
      this.add(typeof(UAC), false, false);
      this.add(typeof(QPD), true, false);
      this.add(typeof(Hxx), false, false);
      this.add(typeof(RCP), true, false);
      this.add(typeof(DSC), false, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating QBP_Q15 - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get Field Example (Generic)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_25.verified.txt

Example of getting a field value, likely for a field not explicitly detailed elsewhere. Handles HL7 and general exceptions.

```csharp
{
			EI ret = null;
			try
			{
			IType t = this.GetField(12, 0);
				ret = (EI)t;
			}
			 catch (HL7Exception he) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
				throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
				throw new System.Exception("An unexpected error occurred", ex);
    }
			return ret;
	}
```

--------------------------------

### PPP_PCB Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

Internal method to set up the segments for the PPP_PCB message.

```csharp
private void init(IModelClassFactory factory) {
	   try {
	      this.add(typeof(MSH), true, false);
	      this.add(typeof(SFT), false, true);
	      this.add(typeof(PID), true, false);
	      this.add(typeof(PPP_PCB_PATIENT_VISIT), false, false);
	      this.add(typeof(PPP_PCB_PATHWAY), true, true);
	   } catch(HL7Exception e) {
	      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPP_PCB - this is probably a bug in the source code generator.", e);
	   }
	}

```

--------------------------------

### Get Start Date

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the Start Date (NK1-8).

```APIDOC
## GET /nhapinet/nhapi/startdate

### Description
Retrieves the Start Date (NK1-8).

### Method
GET

### Endpoint
/nhapinet/nhapi/startdate

### Parameters
None

### Request Example
None

### Response
#### Success Response (200)
- **DT** - The DT object representing the start date.

#### Response Example
```json
"2023-10-27"
```
```

--------------------------------

### Get Start Date/Time

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_28.verified.txt

Retrieves the Start Date/Time (AIS-4) field.

```APIDOC
## GET /ais/start-datetime

### Description
Returns the Start Date/Time (AIS-4) value from the AIS segment.

### Method
GET

### Endpoint
`/ais/start-datetime`

### Parameters
None

### Request Body
None

### Response
#### Success Response (200)
- **StartDateTime** (DTM) - The Start Date/Time value.

#### Response Example
```json
{
  "StartDateTime": "20230101103000"
}
```
```

--------------------------------

### OPL_O37 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_271.verified.txt

Sets up the segments for the OPL_O37 message.

```csharp
this.add(typeof(MSH), true, false);
      this.add(typeof(SFT), false, true);
      this.add(typeof(UAC), false, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(PRT), true, true);
```

--------------------------------

### QBP_Z73 Initialization Logic

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

Sets up the segments for the QBP_Z73 message. It adds MSH, SFT (optional, repeating), QPD, and RCP segments.

```csharp
private void init(IModelClassFactory factory) {
   try {
      this.add(typeof(MSH), true, false);
      this.add(typeof(SFT), false, true);
      this.add(typeof(QPD), true, false);
      this.add(typeof(RCP), true, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating QBP_Z73 - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get Start Date

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_26.verified.txt

Retrieves the Start Date associated with the contact.

```APIDOC
## StartDate

### Description
Retrieves the Start Date (NK1-8) associated with the contact.

### Method
GET

### Endpoint
/nhapinet/nhapi

### Response
#### Success Response (200)
- **DT** - The Start Date object.

#### Response Example
```json
{
  "example": "DT_object"
}
```
```

--------------------------------

### Initialize RSP_K31_ORDER_DETAIL Structure

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_25.verified.txt

Constructor for RSP_K31_ORDER_DETAIL, adding expected sub-structures.

```csharp
public RSP_K31_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(RXO), true, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(RXR), true, true);
      this.add(typeof(RSP_K31_COMPONENTS), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating RSP_K31_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get Start Date/Time (AIL-6)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_25.verified.txt

Retrieves the Start Date/Time (AIL-6).

```APIDOC
## GET /nhapinet/nhapi/start-datetime

### Description
Retrieves the Start Date/Time (AIL-6).

### Method
GET

### Endpoint
/nhapinet/nhapi/start-datetime

### Response
#### Success Response (200)
- **TS** (TS) - The Start Date/Time object.

#### Response Example
```json
{
  "example": "TS object representation"
}
```
```

--------------------------------

### Get Start Date/Time

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_251.verified.txt

Retrieves the Start date/time (TQ1-7) from an HL7 message.

```APIDOC
## GET /nhapinet/nhapi/startdatetime

### Description
Retrieves the Start date/time (TQ1-7).

### Method
GET

### Endpoint
/nhapinet/nhapi/startdatetime

### Parameters
None

### Request Body
None

### Response
#### Success Response (200)
- **TS** (TS object) - The TS object representing the Start date/time.

#### Response Example
```json
{
  "time": "20230101100000"
}
```
```

--------------------------------

### RSP_O34 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_28.verified.txt

Sets up the segments for the RSP_O34 message.

```csharp
private void init(IModelClassFactory factory) {
   try {
      this.add(typeof(MSH), true, false);
      this.add(typeof(SFT), false, true);
      this.add(typeof(UAC), false, false);
      this.add(typeof(MSA), true, false);
      this.add(typeof(ERR), false, false);
      this.add(typeof(QAK), true, false);
      this.add(typeof(QPD), true, false);
      this.add(typeof(RSP_O34_DONOR), false, false);
      this.add(typeof(RSP_O34_DONATION), false, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating RSP_O34 - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### QRY_Q01 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

Internal method to set up the segments for the QRY_Q01 message. It defines which segments are present, their cardinality, and whether they are repeating.

```csharp
private void init(IModelClassFactory factory) {
	   try {
	      this.add(typeof(MSH), true, false);
	      this.add(typeof(SFT), false, true);
	      this.add(typeof(QRD), true, false);
	      this.add(typeof(QRF), false, false);
	      this.add(typeof(DSC), false, false);
	   } catch(HL7Exception e) {
	      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating QRY_Q01 - this is probably a bug in the source code generator.", e);
	   }
	}
```

--------------------------------

### Get Disability Start Date

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the Disability start date (DB1-5).

```APIDOC
## DisabilityStartDate

### Description
Returns Disability start date (DB1-5).

### Method
GET

### Endpoint
/nhapinet/nhapi/disabilityStartDate

### Response
#### Success Response (200)
- **DT** (DT) - The Disability start date.

#### Response Example
```json
{
  "date": "2023-01-01"
}
```
```

--------------------------------

### Get First SUR_P09_PRODUCT Structure

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/SourceGenerationTests.Test_Generate_Versions_version=2.3.1.verified.txt

Retrieves the first instance of the SUR_P09_PRODUCT structure. It is created if it does not already exist.

```csharp
public SUR_P09_PRODUCT GetPRODUCT() {
	   SUR_P09_PRODUCT ret = null;
	   try {
	      ret = (SUR_P09_PRODUCT)this.GetStructure("PRODUCT");
	   } catch(HL7Exception e) {
	      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error accessing data - this is probably a bug in the source code generator.", e);
	      throw new System.Exception("An unexpected error occurred",e);
	   }
	   return ret;
	}
```

--------------------------------

### Get Start Date/Time Offset (AIL-7)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_25.verified.txt

Retrieves the Start Date/Time Offset (AIL-7).

```APIDOC
## GET /nhapinet/nhapi/start-datetime-offset

### Description
Retrieves the Start Date/Time Offset (AIL-7).

### Method
GET

### Endpoint
/nhapinet/nhapi/start-datetime-offset

### Response
#### Success Response (200)
- **NM** (NM) - The Start Date/Time Offset object.

#### Response Example
```json
{
  "example": "NM object representation"
}
```
```

--------------------------------

### DSR_Q03 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_22.verified.txt

Internal method to set up the segments for the DSR_Q03 message.

```csharp
private void init(IModelClassFactory factory) {
   this.add(typeof(MSH), true, false);
   this.add(typeof(MSA), false, false);
   this.add(typeof(QRD), true, false);
   this.add(typeof(QRF), false, false);
   this.add(typeof(DSP), true, true);
   this.add(typeof(DSC), false, false);

```

--------------------------------

### Get Statistics Start

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the Statistics Start (NST-4) field. This property is of type TS.

```csharp
public TS StatisticsStart
{
	get{
		TS ret = null;
		try
		{
		IType t = this.GetField(4, 0);
			ret = (TS)t;
		}
		 catch (HL7Exception he) {
		HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
			throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
			throw new System.Exception("An unexpected error occurred", ex);
    }
		return ret;
}
  }
```

--------------------------------

### Initialize PPG_PCG_ORDER_DETAIL Structure

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_26.verified.txt

Constructor for PPG_PCG_ORDER_DETAIL. Adds expected HL7 structures like OBR, Hxx, NTE, VAR, and PPG_PCG_ORDER_OBSERVATION. Catches HL7Exceptions during initialization.

```csharp
public PPG_PCG_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(OBR), true, false);
      this.add(typeof(Hxx), true, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(VAR), false, true);
      this.add(typeof(PPG_PCG_ORDER_OBSERVATION), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPG_PCG_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### RSP_Z86_ORDER_DETAIL Constructor and Initialization

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

This snippet shows the constructor for RSP_Z86_ORDER_DETAIL and how it initializes its child structures (RXO, RXR, RXC).

```APIDOC
## RSP_Z86_ORDER_DETAIL Constructor

### Description
Initializes a new instance of the `RSP_Z86_ORDER_DETAIL` class, adding the necessary child structures.

### Method
Constructor

### Endpoint
N/A (Class constructor)

### Parameters
- **parent** (IGroup) - The parent group.
- **factory** (IModelClassFactory) - The factory to create model classes.

### Request Body
N/A

### Response
N/A

### Error Handling
Logs HL7 exceptions during initialization.
```

--------------------------------

### Get Field Example

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_281.verified.txt

Example of retrieving a field value with error handling for HL7Exception and System.Exception.

```csharp
				CWE ret = null;
				try
			{
			IType t = this.GetField(2, 0);
				ret = (CWE)t;
			}
			 catch (HL7Exception he) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
				throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
				throw new System.Exception("An unexpected error occurred", ex);
    }
			return ret;
	}
  }
```

--------------------------------

### OSU_O51 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_281.verified.txt

Internal method to set up the segments for the OSU_O51 message.

```csharp
private void init(IModelClassFactory factory) {
       try {
          this.add(typeof(MSH), true, false);
          this.add(typeof(MSA), true, false);
          this.add(typeof(ERR), false, true);
          this.add(typeof(SFT), false, true);
          this.add(typeof(UAC), false, false);
          this.add(typeof(NTE), false, true);
          this.add(typeof(PID), false, false);
          this.add(typeof(ARV), false, true);
          this.add(typeof(OSU_O51_ORDER_STATUS), true, true);
       } catch(HL7Exception e) {
          HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating OSU_O51 - this is probably a bug in the source code generator.", e);
       }
    }

```

--------------------------------

### Get All Requested Start Date/Time Ranges (ARQ-11)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_231.verified.txt

Retrieves all repetitions of the Requested Start Date/Time Range.

```APIDOC
## GetRequestedStartDateTimeRange

### Description
Retrieves all repetitions of Requested Start Date/Time Range (ARQ-11).

### Method
GET

### Endpoint
/nhapinet/nhapi

### Response
#### Success Response (200)
- **DR[]** (DR[]) - An array of DR objects representing all repetitions.

#### Response Example
```json
{
  "example": "[DR object1, DR object2, ...]"
}
```
```

--------------------------------

### Get Employment Start Date (DT)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the Employment Start Date (DT) from the data structure.

```APIDOC
## GET /nhapinet/nhapi/employmentstartdate

### Description
Retrieves the Employment Start Date (DT) from IN2-44.

### Method
GET

### Endpoint
/nhapinet/nhapi/employmentstartdate

### Parameters
None

### Request Example
None

### Response
#### Success Response (200)
- **DT** (DT) - The Employment Start Date object.

#### Response Example
```json
{
  "employmentStartDate": "2023-01-01"
}
```
```

--------------------------------

### RPI_I01 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_23.verified.txt

Internal method to set up the segments for the RPI_I01 message structure.

```csharp
///<summary>
/// initialize method for RPI_I01.  This does the segment setup for the message. 
///</summary> 
private void init(IModelClassFactory factory) {
   try {
      this.add(typeof(MSH), true, false);
      this.add(typeof(MSA), true, false);
      this.add(typeof(RPI_I01_PROVIDER), true, true);
      this.add(typeof(PID), true, false);
      this.add(typeof(NK1), false, true);
      this.add(typeof(RPI_I01_GUARANTOR_INSURANCE), false, false);
      this.add(typeof(NTE), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating RPI_I01 - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get Insured's Employment Start Date

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_25.verified.txt

Retrieves the Insured's Employment Start Date (IN2-44).

```APIDOC
## GET /nhapinet/nhapi/insured/employment-start-date

### Description
Retrieves the Insured's Employment Start Date (IN2-44).

### Method
GET

### Endpoint
/nhapinet/nhapi/insured/employment-start-date

### Parameters
None

### Request Example
None

### Response
#### Success Response (200)
- **employmentStartDate** (DT) - The Insured's Employment Start Date.

#### Response Example
```json
{
  "employmentStartDate": "20230101"
}
```
```

--------------------------------

### Initialize PPP_PCB_GOAL_ROLE Group in C#

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_271.verified.txt

Constructor for the PPP_PCB_GOAL_ROLE group, adding ROL and optional VAR segments. Logs errors if initialization fails.

```csharp
public PPP_PCB_GOAL_ROLE(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(ROL), true, false);
      this.add(typeof(VAR), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPP_PCB_GOAL_ROLE - this is probably a bug in the source code generator.", e);
   }
}

```

--------------------------------

### Initialize RGV_O15_ORDER_DETAIL Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_28.verified.txt

Creates a new RGV_O15_ORDER_DETAIL Group. This group contains RXO, PRT (optional repeating), and RGV_O15_ORDER_DETAIL_SUPPLEMENT (optional).

```csharp
public RGV_O15_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(RXO), true, false);
      this.add(typeof(PRT), false, true);
      this.add(typeof(RGV_O15_ORDER_DETAIL_SUPPLEMENT), false, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating RGV_O15_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get Start Date/Time (AIS-4)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_231.verified.txt

Retrieves the Start Date/Time (AIS-4) field. Handles HL7 and general exceptions.

```csharp
public TS StartDateTime
{
	get{
		TS ret = null;
		try
		{
		IType t = this.GetField(4, 0);
				ret = (TS)t;
		}
		 catch (HL7Exception he) {
		HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
				throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
				throw new System.Exception("An unexpected error occurred", ex);
    }
			return ret;
}
}
```

--------------------------------

### Get Start Date/Time Offset Units (AIL-8)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_26.verified.txt

Retrieves the Start Date/Time Offset Units for the AIL segment (AIL-8).

```APIDOC
## GET /nhapinet/nhapi/location/startdatetimeoffsetunits

### Description
Retrieves the Start Date/Time Offset Units (AIL-8) for the AIL segment.

### Method
GET

### Endpoint
/nhapinet/nhapi/location/startdatetimeoffsetunits

### Parameters
None

### Request Example
None

### Response
#### Success Response (200)
- **CNE** - The Start Date/Time Offset Units object.

#### Response Example
```json
{
  "identifier": "value",
  "text": "description"
}
```
```

--------------------------------

### Initialize CCU_I20_MEDICATION_ADMINISTRATION_DETAIL

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_27.verified.txt

Constructor for the CCU_I20_MEDICATION_ADMINISTRATION_DETAIL class. It initializes the structure by adding RXA, RXR, and OBX segments.

```csharp
public CCU_I20_MEDICATION_ADMINISTRATION_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(RXA), true, true);
      this.add(typeof(RXR), true, false);
      this.add(typeof(OBX), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating CCU_I20_MEDICATION_ADMINISTRATION_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get First SUR_P09_FACILITY_DETAIL Structure

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/SourceGenerationTests.Test_Generate_Versions_version=2.3.1.verified.txt

Retrieves the first instance of the SUR_P09_FACILITY_DETAIL structure. It is created if it does not already exist.

```csharp
public SUR_P09_FACILITY_DETAIL GetFACILITY_DETAIL() {
	   SUR_P09_FACILITY_DETAIL ret = null;
	   try {
	      ret = (SUR_P09_FACILITY_DETAIL)this.GetStructure("FACILITY_DETAIL");
	   } catch(HL7Exception e) {
	      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error accessing data - this is probably a bug in the source code generator.", e);
	      throw new System.Exception("An unexpected error occurred",e);
	   }
	   return ret;
	}
```

--------------------------------

### PEX_P07_NK1_TIMING_QTY Constructor

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_25.verified.txt

Initializes the PEX_P07_NK1_TIMING_QTY group, adding TQ1 and TQ2 structures. TQ1 is required, TQ2 is optional and repeating.

```csharp
public PEX_P07_NK1_TIMING_QTY(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(TQ1), true, false);
      this.add(typeof(TQ2), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PEX_P07_NK1_TIMING_QTY - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Install Specific HL7 Version Models

Source: https://context7.com/nhapinet/nhapi/llms.txt

To reduce application size, install only the specific HL7 version models required. This example shows how to install HL7 v2.4 support.

```xml
<!-- Install only HL7 v2.4 support (2 DLLs instead of 13) -->
<PackageReference Include="nhapi.model.v24" Version="3.0.0" />

<!-- Or multiple specific versions -->
<PackageReference Include="nhapi.model.v23" Version="3.0.0" />
<PackageReference Include="nhapi.model.v231" Version="3.0.0" />
```

--------------------------------

### Initialize PEX_P07_RX_ADMINISTRATION Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

Constructor for the PEX_P07_RX_ADMINISTRATION group, adding RXA and RXR structures. Handles HL7 exceptions during initialization.

```csharp
public PEX_P07_RX_ADMINISTRATION(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(RXA), true, false);
      this.add(typeof(RXR), false, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PEX_P07_RX_ADMINISTRATION - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get OCCURRENCESPANSTARTDATE

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_21.verified.txt

Returns the OCCURRENCE SPAN START DATE (33)(UB1-18) field.

```APIDOC
## Get OCCURRENCESPANSTARTDATE

### Description
Returns the OCCURRENCE SPAN START DATE (33)(UB1-18) field.

### Method
GET

### Endpoint
/nhapinet/nhapi

### Response
#### Success Response (200)
- **DT** (DT) - The OCCURRENCE SPAN START DATE value.

#### Response Example
```json
{
  "example": "YYYYMMDD"
}
```
```

--------------------------------

### Initialize PPP_PCB_ORDER_DETAIL Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_24.verified.txt

Constructor for the PPP_PCB_ORDER_DETAIL group, defining its constituent segments (OBR, RXO, NTE, VAR, PPP_PCB_ORDER_OBSERVATION) and their cardinality.

```csharp
///<summary>
///Represents the PPP_PCB_ORDER_DETAIL Group.  A Group is an ordered collection of message 
/// segments that can repeat together or be optionally in/excluded together.
/// This Group contains the following elements: 
///<ol>
///<li>0: OBR (Observation Request) </li>
///<li>1: RXO (Pharmacy/Treatment Order) </li>
///<li>2: NTE (Notes and Comments) optional repeating</li>
///<li>3: VAR (Variance) optional repeating</li>
///<li>4: PPP_PCB_ORDER_OBSERVATION (a Group object) optional repeating</li>
///</ol>
///</summary>
[Serializable]
public class PPP_PCB_ORDER_DETAIL : AbstractGroup {

	///<summary> 
	/// Creates a new PPP_PCB_ORDER_DETAIL Group.
	///</summary>
	public PPP_PCB_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
	   try {
	      this.add(typeof(OBR), true, false);
	      this.add(typeof(RXO), true, false);
	      this.add(typeof(NTE), false, true);
	      this.add(typeof(VAR), false, true);
	      this.add(typeof(PPP_PCB_ORDER_OBSERVATION), false, true);
	   } catch(HL7Exception e) {
	      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPP_PCB_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
	   }
	}

```

--------------------------------

### Get Total Field Repetitions Used (OBR-38)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_26.verified.txt

Example of getting total repetitions for a field, specifically OBR-38. This snippet is part of a larger getter property and includes exception handling.

```csharp
get{
    try {
	return GetTotalFieldRepetitionsUsed(38);
    }
catch (HL7Exception he) {
        HapiLogFactory.GetHapiLog(this.GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
        throw new System.Exception("An unexpected error occurred", he);
}
 catch (System.Exception cce) {
        HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", cce);
        throw new System.Exception("An unexpected error occurred", cce);
}
}
```

--------------------------------

### Get Total Field Repetitions Used (GT1-20)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the total number of repetitions for a given field. This example specifically gets repetitions for field 20 (Goal Target Type).

```csharp
return GetTotalFieldRepetitionsUsed(20);
```

--------------------------------

### Initialize PGL_PC8_ORDER_DETAIL Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_23.verified.txt

Constructor for PGL_PC8_ORDER_DETAIL. Adds OBR, NTE, VAR, and PGL_PC8_ORDER_OBSERVATION structures.

```csharp
public PGL_PC8_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(OBR), true, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(VAR), false, true);
      this.add(typeof(PGL_PC8_ORDER_OBSERVATION), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PGL_PC8_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get RelationshipToThePatientStartDate

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_271.verified.txt

Retrieves the Relationship to the Patient Start Date. Handles HL7 and general exceptions.

```csharp
public DT RelationshipToThePatientStartDate
{
	get{
		DT ret = null;
		try
		{
		IType t = this.GetField(55, 0);
			ret = (DT)t;
		}
		 catch (HL7Exception he) {
		HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
			throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
				throw new System.Exception("An unexpected error occurred", ex);
    }
			return ret;
	}
  }
```

--------------------------------

### DSR_Q03 Initialization Method

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/SourceGenerationTests.Test_Generate_Versions_version=2.1.verified.txt

Initializes the DSR_Q03 message by adding required segments like MSH, QRD, QRF, DSP, and DSC. Handles HL7 exceptions during setup.

```csharp
/// <summary>
/// initialize method for DSR_Q03.  This does the segment setup for the message. 
///</summary>
private void init(IModelClassFactory factory) {
   try {
      this.add(typeof(MSH), true, false);
      this.add(typeof(QRD), true, false);
      this.add(typeof(QRF), false, false);
      this.add(typeof(DSP), true, true);
      this.add(typeof(DSC), true, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating DSR_Q03 - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Managing RRG_O16_TIMING_GIVE Repetitions

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_251.verified.txt

Code examples for getting, adding, and removing repetitions of the RRG_O16_TIMING_GIVE group.

```APIDOC
## Managing RRG_O16_TIMING_GIVE Repetitions

### Description
Provides methods to interact with the repeating RRG_O16_TIMING_GIVE group within the RRG_O16_GIVE structure.

### Methods

#### GetTIMING_GIVE()
- **Description**: Returns the first repetition of RRG_O16_TIMING_GIVE, creating it if necessary.
- **Returns**: `RRG_O16_TIMING_GIVE`

#### GetTIMING_GIVE(int rep)
- **Description**: Returns a specific repetition of RRG_O16_TIMING_GIVE.
- **Parameters**:
  - **rep** (int) - The index of the repetition to retrieve.
- **Returns**: `RRG_O16_TIMING_GIVE`
- **Throws**: `HL7Exception` if the repetition requested is out of bounds.

#### TIMING_GIVERepetitionsUsed
- **Description**: Gets the number of existing repetitions of RRG_O16_TIMING_GIVE.
- **Returns**: `int`

#### TIMING_GIVEs (IEnumerable)
- **Description**: Enumerates over all existing repetitions of RRG_O16_TIMING_GIVE.
- **Returns**: `IEnumerable<RRG_O16_TIMING_GIVE>`

#### AddTIMING_GIVE()
- **Description**: Adds a new repetition of RRG_O16_TIMING_GIVE.
- **Returns**: `RRG_O16_TIMING_GIVE`

#### RemoveTIMING_GIVE(RRG_O16_TIMING_GIVE toRemove)
- **Description**: Removes a specific RRG_O16_TIMING_GIVE instance.
- **Parameters**:
  - **toRemove** (RRG_O16_TIMING_GIVE) - The instance to remove.

#### RemoveTIMING_GIVEAt(int index)
- **Description**: Removes the RRG_O16_TIMING_GIVE at the specified index.
- **Parameters**:
  - **index** (int) - The index of the repetition to remove.

### Request Example
```csharp
// Assuming 'rrgO16Give' is an instance of RRG_O16_GIVE

// Get the first TIMING_GIVE
RRG_O16_TIMING_GIVE timing1 = rrgO16Give.GetTIMING_GIVE();

// Add a new TIMING_GIVE
RRG_O16_TIMING_GIVE newTiming = rrgO16Give.AddTIMING_GIVE();

// Iterate through all TIMING_GIVEs
foreach (var timing in rrgO16Give.TIMING_GIVEs) {
    // Process each timing group
}
```
```

--------------------------------

### Initialize RGV_O15_ORDER_DETAIL_SUPPLEMENT Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_24.verified.txt

Constructor for the RGV_O15_ORDER_DETAIL_SUPPLEMENT group. It adds the NTE, RXR, and RGV_O15_COMPONENTS structures to the group.

```csharp
public RGV_O15_ORDER_DETAIL_SUPPLEMENT(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(NTE), true, true);
      this.add(typeof(RXR), true, true);
      this.add(typeof(RGV_O15_COMPONENTS), false, false);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating RGV_O15_ORDER_DETAIL_SUPPLEMENT - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Initialize PPV_PCA_ORDER_DETAIL group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_23.verified.txt

Constructor for the PPV_PCA_ORDER_DETAIL group, setting up its constituent segments and groups. Includes error handling for HL7Exception during initialization.

```csharp
public PPV_PCA_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(OBR), true, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(VAR), false, true);
      this.add(typeof(PPV_PCA_ORDER_OBSERVATION), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPV_PCA_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get psake Help

Source: https://github.com/nhapinet/nhapi/blob/master/build/packages/psake.4.4.1/tools/README.markdown

Display detailed help information and usage examples for the Invoke-psake cmdlet.

```powershell
Get-Help Invoke-psake -Full
```

--------------------------------

### Create PPP_PCB_GOAL_OBSERVATION Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_26.verified.txt

Initializes a new instance of the PPP_PCB_GOAL_OBSERVATION group, adding OBX and optional NTE segments. Logs errors during creation.

```csharp
public PPP_PCB_GOAL_OBSERVATION(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(OBX), true, false);
      this.add(typeof(NTE), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPP_PCB_GOAL_OBSERVATION - this is probably a bug in the source code generator.", e);
   }
}

```

--------------------------------

### Get Structure Example

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_271.verified.txt

Retrieves a structure by its name. Handles potential HL7 exceptions during data access.

```csharp
ret = (OMS_O05_PATIENT)this.GetStructure("PATIENT");
```

```csharp
ret = (OMS_O05_ORDER)this.GetStructure("ORDER");
```

```csharp
return (OMS_O05_ORDER)this.GetStructure("ORDER", rep);
```

--------------------------------

### Create PEX_P07_RX_ADMINISTRATION Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_281.verified.txt

Initializes a new PEX_P07_RX_ADMINISTRATION group, adding RXA, RXR, and PRT segments. Logs errors if unexpected issues occur during creation.

```csharp
///<summary> 
/// Creates a new PEX_P07_RX_ADMINISTRATION Group. 
///</summary> 
public PEX_P07_RX_ADMINISTRATION(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(RXA), true, false);
      this.add(typeof(RXR), false, false);
      this.add(typeof(PRT), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PEX_P07_RX_ADMINISTRATION - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Get StartDateTime Field (AIP-6)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_281.verified.txt

Retrieves the Start Date/Time field (AIP-6) from the segment. Handles HL7 and general exceptions.

```csharp
///<summary>
/// Returns Start Date/Time(AIP-6).
///</summary>
public DTM StartDateTime
{
	get{
		DTM ret = null;
		try
		{
		IType t = this.GetField(6, 0);
			ret = (DTM)t;
		}
		 catch (HL7Exception he) {
		HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
			throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
			throw new System.Exception("An unexpected error occurred", ex);
    }
		return ret;
	}
  }
```

--------------------------------

### Get StartDateTime Field (AIS-6)

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_28.verified.txt

Retrieves the Start Date/Time field from the AIS segment. Handles HL7 and general exceptions.

```csharp
///<summary>
/// Returns Start Date/Time(AIP-6).
///</summary>
public DTM StartDateTime
{
	get{
		DTM ret = null;
		try
		{
		IType t = this.GetField(6, 0);
			ret = (DTM)t;
		}
		 catch (HL7Exception he) {
		HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
			throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
			throw new System.Exception("An unexpected error occurred", ex);
    }
		return ret;
}
}
```

--------------------------------

### Initialize PPV_PCA_PATIENT Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_24.verified.txt

Constructor for the PPV_PCA_PATIENT group, adding PID, PPV_PCA_PATIENT_VISIT, and PPV_PCA_GOAL elements. Logs errors if initialization fails.

```csharp
/// <summary>
/// Creates a new PPV_PCA_PATIENT Group.
///</summary>
public PPV_PCA_PATIENT(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(PID), true, false);
      this.add(typeof(PPV_PCA_PATIENT_VISIT), false, false);
      this.add(typeof(PPV_PCA_GOAL), true, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPV_PCA_PATIENT - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Initialize PPG_PCJ_ORDER_DETAIL Group

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_23.verified.txt

Constructor for the PPG_PCJ_ORDER_DETAIL group. It initializes the group with OBR, NTE, VAR, and PPG_PCJ_ORDER_OBSERVATION elements.

```csharp
///<summary>
/// Creates a new PPG_PCJ_ORDER_DETAIL Group.
///</summary>
public PPG_PCJ_ORDER_DETAIL(IGroup parent, IModelClassFactory factory) : base(parent, factory){
   try {
      this.add(typeof(OBR), true, false);
      this.add(typeof(NTE), false, true);
      this.add(typeof(VAR), false, true);
      this.add(typeof(PPG_PCJ_ORDER_OBSERVATION), false, true);
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error creating PPG_PCJ_ORDER_DETAIL - this is probably a bug in the source code generator.", e);
   }
}
```

--------------------------------

### Accessing and Manipulating NTE Segments

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/MessageGeneratorTests.MakeAll_GeneratesAllMessages_23.verified.txt

This section provides code examples for accessing, retrieving, adding, and removing NTE (Notes and Comments) segments within the NHAPI V2.3 structure. It covers getting the first NTE, getting a specific repetition, checking the number of repetitions, iterating through all NTEs, adding a new NTE, and removing NTEs by object or index.

```APIDOC
## NTE Segment Operations

### Get First NTE

Retrieves the first repetition of the NTE segment. Creates it if it does not exist.

```csharp
public NTE GetNTE() {
   NTE ret = null;
   try {
      ret = (NTE)this.GetStructure("NTE");
   } catch(HL7Exception e) {
      HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected error accessing data - this is probably a bug in the source code generator.", e);
      throw new System.Exception("An unexpected error occurred",e);
   }
   return ret;
}
```

### Get Specific NTE Repetition

Retrieves a specific repetition of the NTE segment. Creates it if it does not exist. Throws HL7Exception if the repetition requested is more than one greater than the number of existing repetitions.

```csharp
public NTE GetNTE(int rep) {
   return (NTE)this.GetStructure("NTE", rep);
}
```

### Number of NTE Repetitions Used

Returns the number of existing repetitions of the NTE segment.

```csharp
public int NTERepetitionsUsed {
get {
    int reps = -1;
    try {
        reps = this.GetAll("NTE").Length;
    } catch (HL7Exception e) {
        string message = "Unexpected error accessing data - this is probably a bug in the source code generator.";
        HapiLogFactory.GetHapiLog(GetType()).Error(message, e);
        throw new System.Exception(message);
    }
    return reps;
}
}
```

### Enumerate NTEs

Provides an enumerable collection of all NTE segments.

```csharp
public IEnumerable<NTE> NTEs {
    get {
        for (int rep = 0; rep < NTERepetitionsUsed; rep++) {
            yield return (NTE)this.GetStructure("NTE", rep);
        }
    }
}
```

### Add NTE

Adds a new NTE segment to the message.

```csharp
public NTE AddNTE() {
    return this.AddStructure("NTE") as NTE;
}
```

### Remove NTE

Removes a specific NTE segment instance.

```csharp
public void RemoveNTE(NTE toRemove) {
    this.RemoveStructure("NTE", toRemove);
}
```

### Remove NTE at Index

Removes the NTE segment at the specified index.

```csharp
public void RemoveNTEAt(int index) {
    this.RemoveRepetition("NTE", index);
}
```
```

--------------------------------

### Get Relationship To The Patient Start Date

Source: https://github.com/nhapinet/nhapi/blob/master/tests/NHapi.NUnit.SourceGeneration/Generators/SegmentGeneratorTests.MakeAll_GeneratesAllSegments_23.verified.txt

Retrieves the Relationship To The Patient Start Date (IN2-55). This field represents the start date of the relationship.

```csharp
	public DT RelationshipToThePatientStartDate
	{
		get{
			DT ret = null;
			try
			{
			IType t = this.GetField(55, 0);
				ret = (DT)t;
			}
			 catch (HL7Exception he) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", he);
				throw new System.Exception("An unexpected error occurred", he);
		} catch (System.Exception ex) {
			HapiLogFactory.GetHapiLog(GetType()).Error("Unexpected problem obtaining field value.  This is a bug.", ex);
				throw new System.Exception("An unexpected error occurred", ex);
    }
			return ret;
	}
  }
```