# DTR Payer Service - Da Vinci - Documentation Templates and Rules v2.2.0

## CapabilityStatement: DTR Payer Service 

 
This capability statement defines the expected capabilities of payer systems that provide questionnaires to DTR clients. Such systems need only support server capabilities for the Questionnaire Package, ValueSet Expand, and Next Question operations. 

 [Raw OpenAPI-Swagger Definition file](../dtr-payer-service.openapi.json) | [Download](../dtr-payer-service.openapi.json) 



## Resource Content

```json
{
  "resourceType" : "CapabilityStatement",
  "id" : "dtr-payer-service",
  "extension" : [{
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
    "valueCode" : "cds"
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
    "valueInteger" : 2,
    "_valueInteger" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/us/davinci-dtr/ImplementationGuide/hl7.fhir.us.davinci-dtr"
      }]
    }
  },
  {
    "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status",
    "valueCode" : "trial-use",
    "_valueCode" : {
      "extension" : [{
        "url" : "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
        "valueCanonical" : "http://hl7.org/fhir/us/davinci-dtr/ImplementationGuide/hl7.fhir.us.davinci-dtr"
      }]
    }
  }],
  "url" : "http://hl7.org/fhir/us/davinci-dtr/CapabilityStatement/dtr-payer-service",
  "version" : "2.2.0",
  "name" : "DTRPayerService",
  "title" : "DTR Payer Service",
  "status" : "active",
  "experimental" : false,
  "date" : "2026-02-04",
  "publisher" : "HL7 International / Clinical Decision Support",
  "contact" : [{
    "name" : "HL7 International / Clinical Decision Support",
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/dss"
    }]
  }],
  "description" : "This capability statement defines the expected capabilities of payer systems that provide questionnaires to DTR clients. Such systems need only support server capabilities for the Questionnaire Package, ValueSet Expand, and Next Question operations.",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "urn:iso:std:iso:3166",
      "code" : "US"
    }]
  }],
  "kind" : "requirements",
  "fhirVersion" : "4.0.1",
  "format" : ["json"],
  "rest" : [{
    "mode" : "server",
    "documentation" : "A DTR Payer service provides a service endpoint for DTR apps and full EHRs to connect to",
    "security" : {
      "description" : "Implementations **SHALL** meet the general security requirements documented in the [HRex implementation guide](https://build.fhir.org/ig/HL7/davinci-ehrx)."
    },
    "resource" : [{
      "type" : "Questionnaire",
      "operation" : [{
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
          "valueCode" : "SHALL"
        }],
        "name" : "questionnaire-package",
        "definition" : "http://hl7.org/fhir/us/davinci-dtr/OperationDefinition/questionnaire-package|2.2.0"
      },
      {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
          "valueCode" : "SHALL"
        }],
        "name" : "next-question",
        "definition" : "http://hl7.org/fhir/uv/sdc/OperationDefinition/Questionnaire-next-question|4.0.0"
      },
      {
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
          "valueCode" : "SHALL"
        }],
        "name" : "log-questionnaire-errors",
        "definition" : "http://hl7.org/fhir/us/davinci-dtr/OperationDefinition/log-questionnaire-errors|2.2.0"
      }]
    },
    {
      "type" : "ValueSet",
      "operation" : [{
        "extension" : [{
          "url" : "http://hl7.org/fhir/StructureDefinition/capabilitystatement-expectation",
          "valueCode" : "SHALL"
        }],
        "name" : "expand",
        "definition" : "http://hl7.org/fhir/OperationDefinition/ValueSet-expand"
      }]
    }]
  }]
}

```
