Clinical Document Architecture - Local Development build (v2.0.1-sd-202510-matchbox-patch) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions
| Official URL: http://hl7.org/cda/stds/core/StructureDefinition/CR | Version: 2.0.1-sd-202510-matchbox-patch | |||
| Active as of 2025-10-29 | Computable Name: CR | |||
A concept qualifier code with optionally named role. Both qualifier role and value codes must be defined by the coding system of the CD containing the concept qualifier. For example, if SNOMED RT defines a concept "leg", a role relation "has-laterality", and another concept "left", the concept role relation allows to add the qualifier "has-laterality: left" to a primary code "leg" to construct the meaning "left leg".
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 ANY
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
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C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
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0..1 | bn | ||
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0..1 | CV | ||
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0..1 | CD | ||
  Documentation for this format | ||||
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
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0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..1 | bn | ||
![]() ![]()  | 
0..1 | CV | ||
![]() ![]()  | 
0..1 | CD | ||
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| CR.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..1 | bn | ||
![]() ![]()  | 
0..1 | CV | ||
![]() ![]()  | 
0..1 | CD | ||
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| CR.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
This structure is derived from ANY
Differential View
This structure is derived from ANY
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
![]() ![]()  | 
0..1 | bn | ||
![]() ![]()  | 
0..1 | CV | ||
![]() ![]()  | 
0..1 | CD | ||
  Documentation for this format | ||||
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
Key Elements View
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..1 | bn | ||
![]() ![]()  | 
0..1 | CV | ||
![]() ![]()  | 
0..1 | CD | ||
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| CR.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
Snapshot View
| Name | Flags | Card. | Type | Description & Constraints    Filter:  ![]() ![]()  | 
|---|---|---|---|---|
![]()  | 
C | 1..* | ANY | XML Namespace: urn:hl7-org:v3 Base for all types and resources Elements defined in Ancestors:@nullFlavor Logical Container: ClinicalDocument (CDA Class) Constraints: value-null-cr  | 
![]() ![]()  | 
0..1 | cs | Binding: CDANullFlavor (required) | |
![]() ![]()  | 
0..1 | bn | ||
![]() ![]()  | 
0..1 | CV | ||
![]() ![]()  | 
0..1 | CD | ||
  Documentation for this format | ||||
| Path | Status | Usage | ValueSet | Version | Source | 
| CR.nullFlavor | Base | required | CDANullFlavor | 📦2.0.1-sd-202510-matchbox-patch | This IG | 
| Id | Grade | Path(s) | Description | Expression | 
| value-null-cr | error | CR | Must contain value or nullFlavor. If nullFlavor is present, name and value must not be present. | 
      (value.exists() or nullFlavor.exists()) and (nullFlavor.exists() implies (name | value).empty())
     | 
  
This structure is derived from ANY