HL7 Europe Laboratory Report
0.1.1 - trial-use 150

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## Extension: Certified Reference Material: Identifier

Official URL: http://hl7.eu/fhir/laboratory/StructureDefinition/observation-certifiedRefMaterialIdentifer | Version: 0.1.1
Standards status: Trial-use | Maturity Level: 2 | Computable Name: ObservationCertifiedRefMaterialIdentifer
Other Identifiers: OID:2.16.840.1.113883.2.51.22.1.42.33
Copyright/Legal: Used by permission of HL7 Europe, all rights reserved Creative Commons License

This extension links this observation with the certified reference material used for the calibration. The certified reference material is identified by using an Identifier. This extension should be used when the unit is UCUM [IU].

Context of Use

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

- Element ID: `Observation`

Usage info

Usage:

- Use this Extension: Observation Results: laboratory
- Examples for this Extension: Observation/4335db48-7090-45b3-a2c2-45b45f94a67c

### 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
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Certified Reference Material: Identifier
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.eu/fhir/laboratory/StructureDefinition/observation-certifiedRefMaterialIdentifer"
value[x] |  | 0..1 | Identifier | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Certified Reference Material: Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.eu/fhir/laboratory/StructureDefinition/observation-certifiedRefMaterialIdentifer"
value[x] |  | 0..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension of type Identifier: This extension links this observation with the certified reference material used for the calibration. The certified reference material is identified by using an Identifier. This extension should be used when the unit is UCUM [IU].

Maturity: 2

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Certified Reference Material: Identifier
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.eu/fhir/laboratory/StructureDefinition/observation-certifiedRefMaterialIdentifer"
value[x] |  | 0..1 | Identifier | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Certified Reference Material: Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.eu/fhir/laboratory/StructureDefinition/observation-certifiedRefMaterialIdentifer"
value[x] |  | 0..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension of type Identifier: This extension links this observation with the certified reference material used for the calibration. The certified reference material is identified by using an Identifier. This extension should be used when the unit is UCUM [IU].

Maturity: 2

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() |