C-CDA on FHIR
2.0.0-ballot - STU 2 Ballot

C-CDA on FHIR, published by HL7 International / Cross-Group Projects. This guide is not an authorized publication; it is the continuous build for version 2.0.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/ccda-on-fhir/ and changes regularly. See the Directory of published versions

## Extension: Performer Extension

Official URL: http://hl7.org/fhir/us/ccda/StructureDefinition/PerformerExtension | Version: 2.0.0-ballot
Standards status: Trial-use | Computable Name: PerformerExtension

The Performer Extension represents clinicians who actually and principally carry out the clinical services being documented. In a transfer of care this represents the healthcare providers involved in the current or pertinent historical care of the patient. Preferably, the patients key healthcare care team members would be listed, particularly their primary physician and any active consulting physicians, therapists, and counselors.

Context of Use

This extension may be used on the following element(s)

- Element ID: `Composition`

Usage info

Usages:

- Use this Extension: US Realm Header
- Examples for this Extension: Composition/Procedure-Note-Example

You can also check for usages in the FHIR IG Statistics

### Formal Views of Extension Content

Description of Profiles, Differentials, Snapshots, and how the XML and JSON presentations work.

- Differential Table
- Snapshot Table
- Statistics/References
- All

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Extension
url |  | 1..1 | uri | "http://hl7.org/fhir/us/ccda/StructureDefinition/PerformerExtension"
Slices for valueReference |  |  |  | Content/Rules for all slices
valueReference:valueReference | S | 1..1 | Reference(US Core Practitioner Profile | US Core PractitionerRole Profile) | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/us/ccda/StructureDefinition/PerformerExtension"
Slices for value[x] |  | 1..1 | Reference() | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueReference | S | 1..1 | Reference(US Core Practitioner Profile | US Core PractitionerRole Profile) | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Reference: The Performer Extension represents clinicians who actually and principally carry out the clinical services being documented. In a transfer of care this represents the healthcare providers involved in the current or pertinent historical care of the patient. Preferably, the patients key healthcare care team members would be listed, particularly their primary physician and any active consulting physicians, therapists, and counselors.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Extension
url |  | 1..1 | uri | "http://hl7.org/fhir/us/ccda/StructureDefinition/PerformerExtension"
Slices for valueReference |  |  |  | Content/Rules for all slices
valueReference:valueReference | S | 1..1 | Reference(US Core Practitioner Profile | US Core PractitionerRole Profile) | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Extension
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org/fhir/us/ccda/StructureDefinition/PerformerExtension"
Slices for value[x] |  | 1..1 | Reference() | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueReference | S | 1..1 | Reference(US Core Practitioner Profile | US Core PractitionerRole Profile) | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Reference: The Performer Extension represents clinicians who actually and principally carry out the clinical services being documented. In a transfer of care this represents the healthcare providers involved in the current or pertinent historical care of the patient. Preferably, the patients key healthcare care team members would be listed, particularly their primary physician and any active consulting physicians, therapists, and counselors.

Other representations of profile: CSV, Excel, Schematron

#### Constraints

Id | Grade | Path(s) | Details | Requirements
ele-1 | error | **ALL** elements | All FHIR elements must have a @value or children : hasValue() or (children().count() > id.count()) |
ext-1 | error | **ALL** extensions | Must have either extensions or value[x], not both : extension.exists() != value.exists() |