HL7 Czech Base and Core Implementation Guide
0.3.0-ballot - ci-build

HL7 Czech Base and Core Implementation Guide, published by HL7 Czech Republic. This guide is not an authorized publication; it is the continuous build for version 0.3.0-ballot built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7-cz/cz-core/ and changes regularly. See the Directory of published versions

## Extension: Organization Logo

Official URL: https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo | Version: 0.3.0-ballot
Active as of 2025-12-19 | Computable Name: CZ_OrganizationLogo

An extension to associate a logo (e.g., image or icon) with an Organization, using a reference to a profile Attachment resource.

Context of Use

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

- Element ID: `Organization`

Usage info

Usages:

- Use this Extension: Organization (CZ core)
- Examples for this Extension: MUDr. Hana Doktorová

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 | Organization Logo
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo"
value[x] |  | 1..1 | Reference(DocumentReference containing logo (CZ)) | Reference to a Document reference containing the logo image
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Organization Logo
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo"
value[x] |  | 1..1 | Reference(DocumentReference containing logo (CZ)) | Reference to a Document reference containing the logo image
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Reference: An extension to associate a logo (e.g., image or icon) with an Organization, using a reference to a profile Attachment resource.

Differential View

This structure is derived from Extension

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Organization Logo
extension |  | 0..0 |  | Extension
url |  | 1..1 | uri | "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo"
value[x] |  | 1..1 | Reference(DocumentReference containing logo (CZ)) | Reference to a Document reference containing the logo image
Documentation for this format

Snapshot View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Extension |  | 0..* | Extension | Organization Logo
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..0 |  | Extension Slice: Unordered, Open by value:url
url |  | 1..1 | uri | "https://hl7.cz/fhir/core/StructureDefinition/cz-organization-logo"
value[x] |  | 1..1 | Reference(DocumentReference containing logo (CZ)) | Reference to a Document reference containing the logo image
Documentation for this format

This structure is derived from Extension

Summary

Simple Extension with the type Reference: An extension to associate a logo (e.g., image or icon) with an Organization, using a reference to a profile Attachment resource.

Other representations of profile: CSV, Excel, Schematron

#### 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()`