Advance Healthcare Directive Interoperability (cda-adi), published by Health Level Seven. This guide is not an authorized publication; it is the continuous build for version 0.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/cda-adi/ and changes regularly. See the Directory of published versions
| Official URL: http://hl7.org/cda/us/adi/StructureDefinition/Form.Title.Part | Version: 0.1.0 | |||
| Draft as of 2026-03-14 | Computable Name: Form_Title_Part | |||
| Other Identifiers: urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#urn:hl7ii:2.16.840.1.113883.4.823.1.4.24.2:2026-08-28 | ||||
Sub-part of the ADI Source Form Entry. This entry part includes the form title. This entry is not intended to be used as a complete clinical statement entry on its own.
Usages:
You can also check for usages in the FHIR IG Statistics
Description of Template, Differentials, Snapshots and how the different presentations work.
This structure is derived from Observation
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
|---|---|---|---|---|
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1..1 | Observation | XML Namespace: urn:hl7-org:v3 Base for all types and resources Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class) | |
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1..* | II | Slice: Unordered, Open by value:root, value:extension | |
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1..1 | II | ||
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1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.4.823.1.4.24.2 | |
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1..1 | st | Required Pattern: 2026-08-28 | |
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||||
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0..1 | cs | Required Pattern: 92183-3 | |
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1..* | ED | The title of the form | |
Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source |
| Observation.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.templateId:form-title-part.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.classCode | Base | required | CDAActClassObservation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.moodCode | Base | required | x_ActMoodDocumentObservation | 📍2.0.0 | THO v5.2 |
| Observation.code | Base | example | ObservationType | 📍3.0.0 | THO v7.0 |
| Observation.code.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.statusCode | Base | required | ActStatus | 📍3.0.0 | THO v7.0 |
| Observation.priorityCode | Base | example | ActPriority | 📍3.0.0 | THO v7.0 |
| Observation.languageCode | Base | required | All Languages | 📦5.0.0 | FHIR Std. |
| Observation.interpretationCode | Base | required | CDAObservationInterpretation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.methodCode | Base | example | ObservationMethod | 📍3.0.0 | THO v7.0 |
| Observation.referenceRange.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeCode | Base | required | CDAActRelationshipType | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Id | Grade | Path(s) | Description | Expression |
| II-1 | error | Observation.typeId, Observation.referenceRange.typeId | An II instance must have either a root or an nullFlavor. |
root.exists() or nullFlavor.exists()
|
| Path | Status | Usage | ValueSet | Version | Source |
| Observation.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.templateId:form-title-part.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.classCode | Base | required | CDAActClassObservation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.moodCode | Base | required | x_ActMoodDocumentObservation | 📍2.0.0 | THO v5.2 |
| Observation.code | Base | example | ObservationType | 📍3.0.0 | THO v7.0 |
| Observation.code.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.statusCode | Base | required | ActStatus | 📍3.0.0 | THO v7.0 |
| Observation.priorityCode | Base | example | ActPriority | 📍3.0.0 | THO v7.0 |
| Observation.languageCode | Base | required | All Languages | 📦5.0.0 | FHIR Std. |
| Observation.interpretationCode | Base | required | CDAObservationInterpretation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.methodCode | Base | example | ObservationMethod | 📍3.0.0 | THO v7.0 |
| Observation.referenceRange.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeCode | Base | required | CDAActRelationshipType | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Id | Grade | Path(s) | Description | Expression |
| II-1 | error | Observation.typeId, Observation.referenceRange.typeId | An II instance must have either a root or an nullFlavor. |
root.exists() or nullFlavor.exists()
|
This structure is derived from Observation
Summary
Mandatory: 5 elements
Slices
This structure defines the following Slices:
Differential View
This structure is derived from Observation
| Name | Flags | Card. | Type | Description & Constraints Filter: ![]() ![]() |
|---|---|---|---|---|
![]() |
1..1 | Observation | XML Namespace: urn:hl7-org:v3 Base for all types and resources Instance of this type are validated by templateId Logical Container: ClinicalDocument (CDA Class) | |
![]() ![]() |
1..* | II | Slice: Unordered, Open by value:root, value:extension | |
![]() ![]() ![]() |
1..1 | II | ||
![]() ![]() ![]() ![]() |
1..1 | oid, uuid, ruid | Required Pattern: 2.16.840.1.113883.4.823.1.4.24.2 | |
![]() ![]() ![]() ![]() |
1..1 | st | Required Pattern: 2026-08-28 | |
![]() ![]() |
||||
![]() ![]() ![]() |
0..1 | cs | Required Pattern: 92183-3 | |
![]() ![]() |
1..* | ED | The title of the form | |
Documentation for this format | ||||
Key Elements View
| Path | Status | Usage | ValueSet | Version | Source |
| Observation.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.templateId:form-title-part.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.classCode | Base | required | CDAActClassObservation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.moodCode | Base | required | x_ActMoodDocumentObservation | 📍2.0.0 | THO v5.2 |
| Observation.code | Base | example | ObservationType | 📍3.0.0 | THO v7.0 |
| Observation.code.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.statusCode | Base | required | ActStatus | 📍3.0.0 | THO v7.0 |
| Observation.priorityCode | Base | example | ActPriority | 📍3.0.0 | THO v7.0 |
| Observation.languageCode | Base | required | All Languages | 📦5.0.0 | FHIR Std. |
| Observation.interpretationCode | Base | required | CDAObservationInterpretation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.methodCode | Base | example | ObservationMethod | 📍3.0.0 | THO v7.0 |
| Observation.referenceRange.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeCode | Base | required | CDAActRelationshipType | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Id | Grade | Path(s) | Description | Expression |
| II-1 | error | Observation.typeId, Observation.referenceRange.typeId | An II instance must have either a root or an nullFlavor. |
root.exists() or nullFlavor.exists()
|
Snapshot View
| Path | Status | Usage | ValueSet | Version | Source |
| Observation.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.templateId:form-title-part.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.classCode | Base | required | CDAActClassObservation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.moodCode | Base | required | x_ActMoodDocumentObservation | 📍2.0.0 | THO v5.2 |
| Observation.code | Base | example | ObservationType | 📍3.0.0 | THO v7.0 |
| Observation.code.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.statusCode | Base | required | ActStatus | 📍3.0.0 | THO v7.0 |
| Observation.priorityCode | Base | example | ActPriority | 📍3.0.0 | THO v7.0 |
| Observation.languageCode | Base | required | All Languages | 📦5.0.0 | FHIR Std. |
| Observation.interpretationCode | Base | required | CDAObservationInterpretation | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.methodCode | Base | example | ObservationMethod | 📍3.0.0 | THO v7.0 |
| Observation.referenceRange.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeId.nullFlavor | Base | required | CDANullFlavor | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Observation.referenceRange.typeCode | Base | required | CDAActRelationshipType | 📦2.0.2-sd | Clinical Document Architecture v2.0 |
| Id | Grade | Path(s) | Description | Expression |
| II-1 | error | Observation.typeId, Observation.referenceRange.typeId | An II instance must have either a root or an nullFlavor. |
root.exists() or nullFlavor.exists()
|
This structure is derived from Observation
Summary
Mandatory: 5 elements
Slices
This structure defines the following Slices: