HL7® FHIR® New Zealand Base Implementation Guide
3.1.0 - Draft

HL7® FHIR® New Zealand Base Implementation Guide, published by HL7 New Zealand. This guide is not an authorized publication; it is the continuous build for version 3.1.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/hl7nz/nzbase/ and changes regularly. See the Directory of published versions

## Extension: Nzf_atc

Official URL: http://hl7.org.nz/fhir/StructureDefinition/nzf-atc | Version: 0.1.0
Active as of 2022-08-25 | Computable Name: Nzf_atc

Anatomical Therapeutic Chemical (ATC) Classification - see https://www.who.int/tools/atc-ddd-toolkit/atc-classification

Context of Use

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

- Element ID: `Medication`

Usage info

Usages:

- Use this Extension: Medication resource for use in NZ

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
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://hl7.org.nz/fhir/StructureDefinition/nzf-atc"
value[x] |  | 0..1 | CodeableConcept | Value of extension Binding: https://nzhts.digital.health.nz/fhir/ValueSet/atc-code (required)
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..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org.nz/fhir/StructureDefinition/nzf-atc"
value[x] |  | 0..1 | CodeableConcept | Value of extension Binding: https://nzhts.digital.health.nz/fhir/ValueSet/atc-code (required)
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type CodeableConcept: Anatomical Therapeutic Chemical (ATC) Classification - see https://www.who.int/tools/atc-ddd-toolkit/atc-classification

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Extension
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "http://hl7.org.nz/fhir/StructureDefinition/nzf-atc"
value[x] |  | 0..1 | CodeableConcept | Value of extension Binding: https://nzhts.digital.health.nz/fhir/ValueSet/atc-code (required)
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..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "http://hl7.org.nz/fhir/StructureDefinition/nzf-atc"
value[x] |  | 0..1 | CodeableConcept | Value of extension Binding: https://nzhts.digital.health.nz/fhir/ValueSet/atc-code (required)
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type CodeableConcept: Anatomical Therapeutic Chemical (ATC) Classification - see https://www.who.int/tools/atc-ddd-toolkit/atc-classification

Other representations of profile: CSV, Excel, Schematron

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Extension.value[x] | Base | required | https://nzhts.digital.health.nz/fhir/ValueSet/atc-code | Not State | Unknown

#### Constraints

Id | Grade | Path(s) | Description | Expression
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()`