LOINC – IVD Test Code (LIVD) Mapping
1.0.0 - STU 1

LOINC – IVD Test Code (LIVD) Mapping, published by HL7 International / Orders and Observations. This guide is not an authorized publication; it is the continuous build for version 1.0.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/livd/ and changes regularly. See the Directory of published versions

## Extension: LIVD Vendor Reference Identifier

Official URL: http://hl7.org/fhir/uv/livd/StructureDefinition/ext-vendorReferenceIdentifier | Version: 1.0.0
Standards status: Trial-use | Maturity Level: 2 | Computable Name: LIVDVendorReferenceIdentifier
Other Identifiers: OID:2.16.840.1.113883.4.642.40.51.42.8

Add a vendor reference identifier to ObservationDefinition.

Context of Use

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

- Element ID: `ObservationDefinition`

Usage info

Usages:

- Use this Extension: LIVDObservationDefinition
- Examples for this Extension: Bundle/livd-example-abbott-architect, Bundle/livd-example and ObservationDefinition/b87458ca-b29a-4244-b347-39111caf9ef2

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 | LIVD Vendor Reference Identifier
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/livd/StructureDefinition/ext-vendorReferenceIdentifier"
Slices for value[x] |  | 1..1 | Identifier | Value of extension Slice: Unordered, Open by type:$this
value[x]:valueIdentifier |  | 1..1 | Identifier | Value of extension
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | LIVD Vendor Reference Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/livd/StructureDefinition/ext-vendorReferenceIdentifier"
Slices for value[x] |  | 1..1 | Identifier | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueIdentifier |  | 1..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Identifier: Add a vendor reference identifier to ObservationDefinition.

Maturity: 2

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | LIVD Vendor Reference Identifier
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/livd/StructureDefinition/ext-vendorReferenceIdentifier"
Slices for value[x] |  | 1..1 | Identifier | Value of extension Slice: Unordered, Open by type:$this
value[x]:valueIdentifier |  | 1..1 | Identifier | Value of extension
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | LIVD Vendor Reference Identifier
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  |
url |  | 1..1 | uri | "http://hl7.org/fhir/uv/livd/StructureDefinition/ext-vendorReferenceIdentifier"
Slices for value[x] |  | 1..1 | Identifier | Value of extension Slice: Unordered, Closed by type:$this
value[x]:valueIdentifier |  | 1..1 | Identifier | Value of extension
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Identifier: Add a vendor reference identifier to ObservationDefinition.

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() |