Da Vinci - Coverage Requirements Discovery
2.2.1 - STU 2.2

Da Vinci - Coverage Requirements Discovery, published by HL7 International / Financial Management. This guide is not an authorized publication; it is the continuous build for version 2.2.1 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/HL7/davinci-crd/ and changes regularly. See the Directory of published versions

## Data Type Profile: CDS Hooks Service Response Associated Resource Extension

Official URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/CDSHookServiceResponseExtensionAssociatedResource | Version: 2.2.1 | Highlight text changes?
Standards status: Trial-use Active as of 2026-03-26 | Maturity Level: 4 | Computable Name: CDSHookServiceResponseExtensionAssociatedResource
Other Identifiers: OID:2.16.840.1.113883.4.642.40.18.42.21

Indicates a request resource that is one of those that drove the creation of the card

Usages:

- This DataType Profile is not used by any profiles in this Implementation Guide

You can also check for usages in the FHIR IG Statistics

### Formal Views of Profile Content

Description Differentials, Snapshots, and other representations.

- Key Elements Table
- Differential Table
- Snapshot Table
- Statistics/References
- All

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference | C | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource` Constraints: ref-1
Documentation for this format

#### 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())`
ref-1 | error | Reference | SHALL have a contained resource if a local reference is provided | `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference |  | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource`
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference | C | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource` Constraints: ref-1
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
reference | Σ C | 0..1 | string | Literal reference, Relative, internal or absolute URL
type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known
display | Σ | 0..1 | string | Text alternative for the resource
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Reference.type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.

#### 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()`
ref-1 | error | Reference | SHALL have a contained resource if a local reference is provided | `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))`

Summary

Maturity: 4

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference | C | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource` Constraints: ref-1
Documentation for this format

#### 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())`
ref-1 | error | Reference | SHALL have a contained resource if a local reference is provided | `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))`

Differential View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference |  | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource`
Documentation for this format

Snapshot ViewView

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Reference | C | 0..* | Reference | Request resource tied to card JSON Property Name for Type: `davinci-crd.associated-resource` Constraints: ref-1
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
reference | Σ C | 0..1 | string | Literal reference, Relative, internal or absolute URL
type | Σ | 0..1 | uri | Type the reference refers to (e.g. "Patient") Binding: ResourceType (extensible): Aa resource (or, for logical models, the URI of the logical model).
identifier | Σ | 0..1 | Identifier | Logical reference, when literal reference is not known
display | Σ | 0..1 | string | Text alternative for the resource
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Reference.type | Base | extensible | ResourceType | 📍4.0.1 | FHIR Std.

#### 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()`
ref-1 | error | Reference | SHALL have a contained resource if a local reference is provided | `reference.startsWith('#').not() or (reference.substring(1).trace('url') in %rootResource.contained.id.trace('ids'))`

Summary

Maturity: 4

Other representations of profile: CSV, Excel, Schematron