COVID-19 FHIR Profile Library IG Informative Version
1.0.0 - Informative US

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## Extension: COVID-19 Underlying Condition Reference

Official URL: http://hl7.org/fhir/us/covid19library/StructureDefinition/covid19-underlying-condition-reference | Version: 1.0.0
Active as of 2022-07-25 | Computable Name: COVID19UnderlyingConditionReference
Copyright/Legal: HL7 International & Logica Health, all rights reserved Creative Commons License

An extension to capture the referred-to condition resource for the underlying condition to COVID-19

Context of Use

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

- Element

Usage info

Usage:

- Use this Extension: UnderlyingConditionObservationParent, COVID-19 Underlying Medical Condition observation
- Examples for this Extension: Observation/COVID19UnderlyingConditionObservationExample

### Formal Views of Extension Content

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

- Text Summary
- Differential Table
- Snapshot Table
- All

This structure is derived from Extension

Summary

Fixed Value: 1 element
Prohibited: 1 element

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | COVID-19 Underlying Condition Reference
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/covid19library/StructureDefinition/covid19-underlying-condition-reference"
value[x] |  | 0..1 | Reference() | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | COVID-19 Underlying Condition Reference
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/covid19library/StructureDefinition/covid19-underlying-condition-reference"
value[x] |  | 0..1 | Reference() | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Fixed Value: 1 element
Prohibited: 1 element

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | COVID-19 Underlying Condition Reference
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/covid19library/StructureDefinition/covid19-underlying-condition-reference"
value[x] |  | 0..1 | Reference() | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | COVID-19 Underlying Condition Reference
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/us/covid19library/StructureDefinition/covid19-underlying-condition-reference"
value[x] |  | 0..1 | Reference() | Value of extension
Documentation for this format

Other representations of profile: CSV, Excel, Schematron