Da Vinci - Coverage Requirements Discovery
2.2.0-snapshot - STU 2.2 Peer Review

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 2.2.0-snapshot 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

## Resource Profile: CRD Medication

Official URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/profile-medication | Version: 2.2.0-snapshot | Highlight text changes?
Standards status: Trial-use Active as of 2026-02-19 | Maturity Level: 4 | Computable Name: CRDMedication
Other Identifiers: OID:2.16.840.1.113883.4.642.40.18.42.25

This profile specifies additional constraints on the US Core Medication Profile to support coverage requirements discovery.

Usages:

- Refer to this Profile: CRD Medication Request

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
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
code | S Σ | 1..1 | CodeableConcept | Codes that identify this medication Binding: MedicationClinicalDrug (20240606) (extensible)
Slices for extension |  |  |  | Content/Rules for all slices
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
status | ?!Σ | 0..1 | code | active | inactive | entered-in-error Binding: Medication Status Codes (required): A coded concept defining if the medication is in active use.
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Medication.code | Base | extensible | Medication Clinical Drug | 📍20240606 | VSAC v0.19
Medication.status | Base | required | Medication status codes | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Medication | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Medication | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Medication | A resource should have narrative for robust management | `text.`div`.exists()`
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()`

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
code |  |  |  |
Slices for extension |  |  |  | Content/Rules for all slices
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
Documentation for this format

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Business identifier for this medication
code | S Σ | 1..1 | CodeableConcept | Codes that identify this medication Binding: MedicationClinicalDrug (20240606) (extensible)
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
coding | Σ | 0..* | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
status | ?!Σ | 0..1 | code | active | inactive | entered-in-error Binding: Medication Status Codes (required): A coded concept defining if the medication is in active use.
manufacturer | Σ | 0..1 | Reference(Organization) | Manufacturer of the item
form |  | 0..1 | CodeableConcept | powder | tablets | capsule + Binding: SNOMEDCTFormCodes (example): A coded concept defining the form of a medication.
amount | Σ | 0..1 | Ratio | Amount of drug in package
ingredient |  | 0..* | BackboneElement | Active or inactive ingredient
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
item[x] |  | 1..1 |  | The actual ingredient or content
itemCodeableConcept |  |  | CodeableConcept |
itemReference |  |  | Reference(Substance | Medication) |
isActive |  | 0..1 | boolean | Active ingredient indicator
strength |  | 0..1 | Ratio | Quantity of ingredient present
batch |  | 0..1 | BackboneElement | Details about packaged medications
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
lotNumber |  | 0..1 | string | Identifier assigned to batch
expirationDate |  | 0..1 | dateTime | When batch will expire
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Medication.language | Base | preferred | Common Languages | 📦4.0.1 | FHIR Std.
Medication.code | Base | extensible | Medication Clinical Drug | 📍20240606 | VSAC v0.19
Medication.status | Base | required | Medication status codes | 📍4.0.1 | FHIR Std.
Medication.form | Base | example | SNOMED CT Form Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Medication | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Medication | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Medication | A resource should have narrative for robust management | `text.`div`.exists()`
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()`

Summary

Must-Support: 1 element

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options

Maturity: 4

Key Elements View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
code | S Σ | 1..1 | CodeableConcept | Codes that identify this medication Binding: MedicationClinicalDrug (20240606) (extensible)
Slices for extension |  |  |  | Content/Rules for all slices
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
status | ?!Σ | 0..1 | code | active | inactive | entered-in-error Binding: Medication Status Codes (required): A coded concept defining if the medication is in active use.
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Medication.code | Base | extensible | Medication Clinical Drug | 📍20240606 | VSAC v0.19
Medication.status | Base | required | Medication status codes | 📍4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Medication | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Medication | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Medication | A resource should have narrative for robust management | `text.`div`.exists()`
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()`

Differential View

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
code |  |  |  |
Slices for extension |  |  |  | Content/Rules for all slices
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
Documentation for this format

Snapshot ViewView

Name | Flags | Card. | Type | Description & Constraints Filter: Bindings Constraints Obligations
--- | --- | --- | --- | ---
Medication |  | 0..* | USCoreMedicationProfile(7.0.0) | Definition of a Medication
id | Σ | 0..1 | id | Logical id of this artifact
meta | Σ | 0..1 | Meta | Metadata about the resource
implicitRules | ?!Σ | 0..1 | uri | A set of rules under which this content was created
language |  | 0..1 | code | Language of the resource content Binding: CommonLanguages (preferred): A human language.
Additional Bindings | Purpose
AllLanguages | Max Binding
text |  | 0..1 | Narrative | Text summary of the resource, for human interpretation This profile does not constrain the narrative in regard to content, language, or traceability to data elements
contained |  | 0..* | Resource | Contained, inline Resources
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?! | 0..* | Extension | Extensions that cannot be ignored
identifier | Σ | 0..* | Identifier | Business identifier for this medication
code | S Σ | 1..1 | CodeableConcept | Codes that identify this medication Binding: MedicationClinicalDrug (20240606) (extensible)
id |  | 0..1 | string | Unique id for inter-element referencing
Slices for extension |  | 0..* | Extension | Additional content defined by implementations Slice: Unordered, Open by value:url
extension:BillingOptions | S | 0..* | CodeableConcept | Expected Billing Code(s) URL: http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options Binding: CRD Billing Codes Value Set (extensible)
coding | Σ | 0..* | Coding | Code defined by a terminology system
text | Σ | 0..1 | string | Plain text representation of the concept
status | ?!Σ | 0..1 | code | active | inactive | entered-in-error Binding: Medication Status Codes (required): A coded concept defining if the medication is in active use.
manufacturer | Σ | 0..1 | Reference(Organization) | Manufacturer of the item
form |  | 0..1 | CodeableConcept | powder | tablets | capsule + Binding: SNOMEDCTFormCodes (example): A coded concept defining the form of a medication.
amount | Σ | 0..1 | Ratio | Amount of drug in package
ingredient |  | 0..* | BackboneElement | Active or inactive ingredient
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
item[x] |  | 1..1 |  | The actual ingredient or content
itemCodeableConcept |  |  | CodeableConcept |
itemReference |  |  | Reference(Substance | Medication) |
isActive |  | 0..1 | boolean | Active ingredient indicator
strength |  | 0..1 | Ratio | Quantity of ingredient present
batch |  | 0..1 | BackboneElement | Details about packaged medications
id |  | 0..1 | string | Unique id for inter-element referencing
extension |  | 0..* | Extension | Additional content defined by implementations
modifierExtension | ?!Σ | 0..* | Extension | Extensions that cannot be ignored even if unrecognized
lotNumber |  | 0..1 | string | Identifier assigned to batch
expirationDate |  | 0..1 | dateTime | When batch will expire
Documentation for this format

#### Terminology Bindings

Path | Status | Usage | ValueSet | Version | Source
Medication.language | Base | preferred | Common Languages | 📦4.0.1 | FHIR Std.
Medication.code | Base | extensible | Medication Clinical Drug | 📍20240606 | VSAC v0.19
Medication.status | Base | required | Medication status codes | 📍4.0.1 | FHIR Std.
Medication.form | Base | example | SNOMED CT Form Codes | 📦4.0.1 | FHIR Std.

#### Constraints

Id | Grade | Path(s) | Description | Expression
dom-2 | error | Medication | If the resource is contained in another resource, it SHALL NOT contain nested Resources | `contained.contained.empty()`
dom-3 | error | Medication | If the resource is contained in another resource, it SHALL be referred to from elsewhere in the resource or SHALL refer to the containing resource | `contained.where((('#'+id in (%resource.descendants().reference | %resource.descendants().as(canonical) | %resource.descendants().as(uri) | %resource.descendants().as(url))) or descendants().where(reference = '#').exists() or descendants().where(as(canonical) = '#').exists() or descendants().where(as(canonical) = '#').exists()).not()).trace('unmatched', id).empty()`
dom-4 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a meta.versionId or a meta.lastUpdated | `contained.meta.versionId.empty() and contained.meta.lastUpdated.empty()`
dom-5 | error | Medication | If a resource is contained in another resource, it SHALL NOT have a security label | `contained.meta.security.empty()`
dom-6 | best practice | Medication | A resource should have narrative for robust management | `text.`div`.exists()`
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()`

Summary

Must-Support: 1 element

Extensions

This structure refers to these extensions:

- http://hl7.org/fhir/us/davinci-crd/StructureDefinition/ext-billing-options

Maturity: 4

Other representations of profile: CSV, Excel, Schematron