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

## CodeSystem: CRD Metric Codes

Official URL: http://hl7.org/fhir/us/davinci-crd/CodeSystem/crd-metric-codes | Version: 2.2.1 | Highlight text changes?
Standards status: Trial-use Active as of 2026-03-26 | Maturity Level: 4 | Computable Name: CRDMetricCodes
Other Identifiers: OID:2.16.840.1.113883.4.642.40.18.16.3

Codes used within 'code' elements in the CRD Metric logical model.

This Code system is referenced in the definition of the following value sets:

- CDSHookType
- MetricDataSource
- MetricTokenUse

Properties

This code system defines the following properties for its concepts

Name | Code | URI | Type
Not Selectable | abstract | http://hl7.org/fhir/concept-properties#notSelectable | boolean

Concepts

This case-sensitive code system `http://hl7.org/fhir/us/davinci-crd/CodeSystem/crd-metric-codes` defines the following codes in a Is-A hierarchy:

Lvl | Code | Display | Definition | Not Selectable
1 | used | Authorization Token Used | An authorization token was used by the payer to access additional information from the provider system as part of the CDS Hooks call |
2 | rejected | Authorization Token Rejected | The payer attempted to use an authorization token to access additional information from the provider system as part of the CDS Hooks call, however the access request failed. (This is not used if the request succeeded but returned no records.) |
1 | not-used | Authorization Token Not Used | The payer did not attempt to use an authorization token to access additional information from the provider system as part of the CDS Hooks call |
1 | provider-src | Provider-sourced | The metric information was captured from the provider system's perspective |
1 | payer-src | Payer-sourced | The metric information was captured from the payer system's perspective |
1 | _HookType | CDS Hooks Type (abstract) | A collector for the different types of CDS Hooks | true
2 | appointment-book | Appointment Book | CDS Hooks Appointment Book Hook |
2 | encounter-start | Encounter Start | CDS Hooks Encounter Start Hook |
2 | encounter-discharge | Encounter Discharge | CDS Hooks Encounter Discharge Hook |
2 | order-dispatch | Order Dispatch | CDS Hooks Order Dispatch Hook |
2 | order-select | Order Select | CDS Hooks Order Select Hook |
2 | order-sign | Order Sign | CDS Hooks Order Sign Hook |

Description of the above table(s).