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FHIR IG Statistics: StructureDefinition/CRDHooksRequest

Packagehl7.fhir.us.davinci-crd
Resource TypeStructureDefinition
IdCRDHooksRequest
FHIR VersionR4
Sourcehttp://hl7.org/fhir/us/davinci-crd/https://build.fhir.org/ig/HL7/davinci-crd/StructureDefinition-CRDHooksRequest.html
URLhttp://hl7.org/fhir/us/davinci-crd/StructureDefinition/CRDHooksRequest
Version2.2.0-ballot
Statusactive
Date2025-07-30T21:58:39+00:00
NameCRDHooksRequest
TitleCRD CDSHooks Request (Logical Definition)
Realmus
Authorityhl7
DescriptionDefines CRD-specific constraints on the CDS Hooks Request logical model
Typehttp://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest
Kindlogical

Resources that use this resource

No resources found


Resources that this resource uses

StructureDefinition
CDSHooksRequestCDSHooks Request (Logical Definition)
ValueSet
cdsHookTypeCDS Hook Types Value Set

Narrative

Note: links and images are rebased to the (stated) source

Generated Narrative: StructureDefinition CRDHooksRequest

NameFlagsCard.TypeDescription & Constraintsdoco
.. CDSHooksRequest 0..*CDSHooksRequest
Elements defined in Ancestors:extension, hook, hookInstance, fhirServer, fhirAuthorization, context, prefetch
Request for decision support
... extension 0..1CDSHooksExtensionsExtension
... hook S1..1codeHook event triggering call
Binding: CDS Hook Types Value Set (required)
... hookInstance S1..1uuidUnique id for hook invocation
... fhirServer S1..1urlLocation to query for data
... fhirAuthorization S1..1CDSHooksElementAuth to use in queries
.... accessToken S1..1stringAuth token for query header
.... tokenType S1..1codeBearer
.... expiresIn S1..1integerSeconds token is valid
.... scope S1..1stringGranted access scopes
.... subject S1..1stringPatient id for access
... context S1..1CDSHookContextContext for decision support
JSON: If%resource.hook = 'appointment-book'then the type is http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookAppointmentBookContext
JSON: If%resource.hook = 'encounter-start'then the type is http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterStartContext
JSON: If%resource.hook = 'encounter-discharge'then the type is http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterDischargeContext
JSON: If%resource.hook = 'order-dispatch'then the type is http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDOrderDispatchContext
JSON: If%resource.hook = 'order-select'then the type is http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext
JSON: If%resource.hook = 'order-sign'then the type is http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext
... prefetch S0..*BasePrefetch info requested by server
.... key S1..1codeKey as specfied in server prefetch config
.... value S1..1ResourceResource(s) matching prefetch criteria

doco Documentation for this format

Source

{
  "resourceType": "StructureDefinition",
  "id": "CRDHooksRequest",
  "text": {
    "status": "extensions",
    "div": "<!-- snip (see above) -->"
  },
  "extension": [
    {
      "url": "http://hl7.org/fhir/tools/StructureDefinition/json-suppress-resourcetype",
      "valueBoolean": true
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-wg",
      "valueCode": "fm"
    },
    {
      "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm",
      "valueInteger": 4,
      "_valueInteger": {
        "extension": [
          {
            "url": "http://hl7.org/fhir/StructureDefinition/structuredefinition-conformance-derivedFrom",
            "valueCanonical": "http://hl7.org/fhir/us/davinci-crd/ImplementationGuide/davinci-crd"
          }
        ]
      }
    },
    {
      "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-crd/ImplementationGuide/davinci-crd"
          }
        ]
      }
    }
  ],
  "url": "http://hl7.org/fhir/us/davinci-crd/StructureDefinition/CRDHooksRequest",
  "identifier": [
    {
      "system": "urn:ietf:rfc:3986",
      "value": "urn:oid:2.16.840.1.113883.4.642.40.18.42.34"
    }
  ],
  "version": "2.2.0-ballot",
  "name": "CRDHooksRequest",
  "title": "CRD CDSHooks Request (Logical Definition)",
  "status": "active",
  "date": "2025-07-30T21:58:39+00:00",
  "publisher": "HL7 International / Financial Management",
  "contact": [
    {
      "telecom": [
        {
          "system": "url",
          "value": "http://www.hl7.org/Special/committees/fm"
        }
      ]
    }
  ],
  "description": "Defines CRD-specific constraints on the CDS Hooks Request logical model",
  "jurisdiction": [
    {
      "coding": [
        {
          "system": "urn:iso:std:iso:3166",
          "code": "US"
        }
      ]
    }
  ],
  "fhirVersion": "4.0.1",
  "mapping": [
    {
      "identity": "rim",
      "uri": "http://hl7.org/v3",
      "name": "RIM Mapping"
    }
  ],
  "kind": "logical",
  "abstract": false,
  "type": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest",
  "baseDefinition": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest",
  "derivation": "constraint",
  "snapshot": {
    "extension": [
      {
        "url": "http://hl7.org/fhir/tools/StructureDefinition/snapshot-base-version",
        "valueString": "0.7.1"
      }
    ],
    "element": [
      {
        "id": "CDSHooksRequest",
        "path": "CDSHooksRequest",
        "short": "Request for decision support",
        "definition": "The data structure that used when invoking a CDS Hook service",
        "min": 0,
        "max": "*",
        "base": {
          "path": "Base",
          "min": 0,
          "max": "*"
        },
        "constraint": [
          {
            "key": "cds-r-1",
            "severity": "error",
            "human": "if fhirAuthorization details are provided, a fhirServer SHALL be specified",
            "expression": "fhirAuthorization.exists() implies fhirServer.exists()",
            "source": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"
          }
        ],
        "isModifier": false,
        "mapping": [
          {
            "identity": "rim",
            "map": "n/a"
          }
        ]
      },
      {
        "id": "CDSHooksRequest.extension",
        "path": "CDSHooksRequest.extension",
        "short": "Extension",
        "definition": "An Extension",
        "min": 0,
        "max": "1",
        "base": {
          "path": "CDSHooksElement.extension",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksExtensions"
          }
        ]
      },
      {
        "id": "CDSHooksRequest.hook",
        "path": "CDSHooksRequest.hook",
        "short": "Hook event triggering call",
        "definition": "The hook that triggered this CDS Service call",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.hook",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "valueSet": "http://hl7.org/fhir/us/davinci-crd/ValueSet/cdsHookType"
        }
      },
      {
        "id": "CDSHooksRequest.hookInstance",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/implied-string-prefix",
            "valueString": "urn:uuid:"
          }
        ],
        "path": "CDSHooksRequest.hookInstance",
        "short": "Unique id for hook invocation",
        "definition": "While working in the CDS Client, a user can perform multiple actions in series or in parallel. For example, a clinician might prescribe two drugs in a row; each prescription action would be assigned a unique hookInstance. This allows a CDS Service to uniquely identify each hook invocation",
        "comment": "Note: the hookInstance is globally unique and should contain enough entropy to be un-guessable.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.hookInstance",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "uuid"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirServer",
        "path": "CDSHooksRequest.fhirServer",
        "short": "Location to query for data",
        "definition": "The base URL of the CDS Client's FHIR server. If fhirAuthorization is provided, this field is REQUIRED. The scheme MUST be https when production data is exchanged",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirServer",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "url"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization",
        "path": "CDSHooksRequest.fhirAuthorization",
        "short": "Auth to use in queries",
        "definition": "A structure holding an OAuth 2.0 bearer access token granting the CDS Service access to FHIR resources, along with supplemental information relating to the token",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksElement"
          }
        ],
        "constraint": [
          {
            "key": "cds-r-2",
            "severity": "error",
            "human": "If the granted SMART scopes include patient scopes (i.e. 'patient/'), the patient field SHOULD be populated to identify the FHIR id of that patient.",
            "expression": "scope.contains('Patient/') implies patient.exists()",
            "source": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksRequest"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.extension",
        "path": "CDSHooksRequest.fhirAuthorization.extension",
        "short": "Object that has Named Extension Properties",
        "definition": "A JSON object that has properties where the names are defined by the extension definitions",
        "comment": "Extension structures SHOULD use a strategy for naming that ensures global uniqueness, such as reverse-domain-name notation, e.g. com.cds-hooks.sandbox.myextension-practitionerspecialty. How to handle complex extensions (objects) is not defined",
        "min": 0,
        "max": "1",
        "base": {
          "path": "CDSHooksElement.extension",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "http://hl7.org/fhir/tools/StructureDefinition/CDSHooksExtensions"
          }
        ]
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.accessToken",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-name",
            "valueString": "access_token"
          }
        ],
        "path": "CDSHooksRequest.fhirAuthorization.accessToken",
        "short": "Auth token for query header",
        "definition": "This is the OAuth 2.0 access token that provides access to the FHIR server",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.accessToken",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.tokenType",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-name",
            "valueString": "token_type"
          }
        ],
        "path": "CDSHooksRequest.fhirAuthorization.tokenType",
        "short": "Bearer",
        "definition": "The type of token provided.  (Present to support future extensibility)",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.tokenType",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "fixedCode": "Bearer",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.expiresIn",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-name",
            "valueString": "expires_in"
          }
        ],
        "path": "CDSHooksRequest.fhirAuthorization.expiresIn",
        "short": "Seconds token is valid",
        "definition": "The lifetime in seconds of the access token.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.expiresIn",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "integer"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.scope",
        "path": "CDSHooksRequest.fhirAuthorization.scope",
        "short": "Granted access scopes",
        "definition": "The scopes the access token grants the CDS Service",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.scope",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.subject",
        "path": "CDSHooksRequest.fhirAuthorization.subject",
        "short": "Patient id for access",
        "definition": "If the granted SMART scopes include patient scopes (i.e. 'patient/'), the access token is restricted to a specific patient. This field SHOULD be populated to identify the FHIR id of that patient.",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.subject",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "string"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.patient",
        "path": "CDSHooksRequest.fhirAuthorization.patient",
        "short": "OAuth 2.0 client identifier of the CDS Service",
        "definition": "The OAuth 2.0 client identifier of the CDS Service, as registered with the CDS Client's authorization server",
        "min": 0,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.fhirAuthorization.patient",
          "min": 0,
          "max": "1"
        },
        "type": [
          {
            "code": "id"
          }
        ]
      },
      {
        "id": "CDSHooksRequest.context",
        "extension": [
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'appointment-book'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookAppointmentBookContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'encounter-start'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookEncounterStartContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'encounter-discharge'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookEncounterDischargeContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'patient-view'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookPatientViewContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-dispatch'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderDispatchContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-sign'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderSignContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-select'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookOrderSelectContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          }
        ],
        "path": "CDSHooksRequest.context",
        "short": "Context for decision support",
        "definition": "Hook-specific contextual data that the CDS service will need",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.context",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "http://hl7.org/fhir/tools/StructureDefinition/CDSHookContext"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-property-key",
            "valueCode": "key"
          }
        ],
        "path": "CDSHooksRequest.prefetch",
        "short": "Prefetch info requested by server",
        "definition": "An object containing key/value pairs of FHIR queries that this Request is requesting the CDS Client to perform and provide on each Request call. The key is a string that describes the type of data being requested and the value is a string representing the FHIR query",
        "comment": "While this is mustSupport, CRD clients are not required to pass any or all prefetch data requested by the CRD service.",
        "min": 0,
        "max": "*",
        "base": {
          "path": "CDSHooksRequest.prefetch",
          "min": 0,
          "max": "*"
        },
        "type": [
          {
            "code": "Base"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch.key",
        "path": "CDSHooksRequest.prefetch.key",
        "short": "Key as specfied in server prefetch config",
        "definition": "Name of the FHIR query/read from the CDS Hooks Services object provided by the server",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.prefetch.key",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "code"
          }
        ],
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch.value",
        "extension": [
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/json-nullable",
            "valueBoolean": true
          },
          {
            "url": "http://hl7.org/fhir/tools/StructureDefinition/id-expectation",
            "valueCode": "optional"
          }
        ],
        "path": "CDSHooksRequest.prefetch.value",
        "short": "Resource(s) matching prefetch criteria",
        "definition": "What was found by executing the search or read requested by the CDS Hooks Service in the context of this particular hook invocation",
        "min": 1,
        "max": "1",
        "base": {
          "path": "CDSHooksRequest.prefetch.value",
          "min": 1,
          "max": "1"
        },
        "type": [
          {
            "code": "Resource"
          }
        ],
        "mustSupport": true
      }
    ]
  },
  "differential": {
    "element": [
      {
        "id": "CDSHooksRequest",
        "path": "CDSHooksRequest",
        "short": "Request for decision support"
      },
      {
        "id": "CDSHooksRequest.extension",
        "path": "CDSHooksRequest.extension"
      },
      {
        "id": "CDSHooksRequest.hook",
        "path": "CDSHooksRequest.hook",
        "short": "Hook event triggering call",
        "type": [
          {
            "code": "code"
          }
        ],
        "mustSupport": true,
        "binding": {
          "strength": "required",
          "valueSet": "http://hl7.org/fhir/us/davinci-crd/ValueSet/cdsHookType"
        }
      },
      {
        "id": "CDSHooksRequest.hookInstance",
        "path": "CDSHooksRequest.hookInstance",
        "short": "Unique id for hook invocation",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirServer",
        "path": "CDSHooksRequest.fhirServer",
        "short": "Location to query for data",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization",
        "path": "CDSHooksRequest.fhirAuthorization",
        "short": "Auth to use in queries",
        "min": 1,
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.accessToken",
        "path": "CDSHooksRequest.fhirAuthorization.accessToken",
        "short": "Auth token for query header",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.tokenType",
        "path": "CDSHooksRequest.fhirAuthorization.tokenType",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.expiresIn",
        "path": "CDSHooksRequest.fhirAuthorization.expiresIn",
        "short": "Seconds token is valid",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.scope",
        "path": "CDSHooksRequest.fhirAuthorization.scope",
        "short": "Granted access scopes",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.fhirAuthorization.subject",
        "path": "CDSHooksRequest.fhirAuthorization.subject",
        "short": "Patient id for access",
        "definition": "If the granted SMART scopes include patient scopes (i.e. 'patient/'), the access token is restricted to a specific patient. This field SHOULD be populated to identify the FHIR id of that patient.",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.context",
        "extension": [
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'appointment-book'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookAppointmentBookContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'encounter-start'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterStartContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'encounter-discharge'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/tools/StructureDefinition/CDSEncounterDischargeContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-dispatch'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDOrderDispatchContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-select'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          },
          {
            "extension": [
              {
                "url": "condition",
                "valueString": "%resource.hook = 'order-sign'"
              },
              {
                "url": "type",
                "valueCode": "http://hl7.org/fhir/us/davnci-crd/StructureDefinition/CRDHookOrderSignContext"
              }
            ],
            "url": "http://hl7.org/fhir/tools/StructureDefinition/type-specifier"
          }
        ],
        "path": "CDSHooksRequest.context",
        "short": "Context for decision support",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch",
        "path": "CDSHooksRequest.prefetch",
        "short": "Prefetch info requested by server",
        "comment": "While this is mustSupport, CRD clients are not required to pass any or all prefetch data requested by the CRD service.",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch.key",
        "path": "CDSHooksRequest.prefetch.key",
        "short": "Key as specfied in server prefetch config",
        "mustSupport": true
      },
      {
        "id": "CDSHooksRequest.prefetch.value",
        "path": "CDSHooksRequest.prefetch.value",
        "short": "Resource(s) matching prefetch criteria",
        "mustSupport": true
      }
    ]
  }
}