Cross-Version Extension for Dosage.asNeeded[x] in R3

Context of Use

This extension may be used in the following contexts:

• element Basic (For version R2)

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension	Take "as needed" (for x)
extension		..0
value[x]		1..
valueBoolean			boolean
valueCodeableConcept			CodeableConcept
url				"http://hl7.org/fhir/3.0/StructureDefinition/extension-Dosage.asNeeded[x]"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r3-dos.asNeeded[x]",
  "url" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-Dosage.asNeeded[x]",
  "name" : "XVerExtensionDosage.asNeeded[x]R3",
  "title" : "Cross-Version Extension for Dosage.asNeeded[x] in R3",
  "status" : "active",
  "experimental" : false,
  "publisher" : "HL7 FHIR Standard",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  }],
  "description" : "Cross-Version Extension for Dosage.asNeeded[x]. Valid in versions R2\r\n\r\nThis is a valid cross-version extension because it's counted as a new element",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "fhirVersion" : "5.0.0",
  "kind" : "complex-type",
  "abstract" : false,
  "context" : [{
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Basic"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Take \"as needed\" (for x)",
      "definition" : "Indicates whether the Medication is only taken when needed within a specific dosing schedule (Boolean option), or it indicates the precondition for taking the Medication (CodeableConcept).",
      "comment" : "Can express \"as needed\" without a reason by setting the Boolean = True.  In this case the CodeableConcept is not populated.  Or you can express \"as needed\" with a reason by including the CodeableConcept.  In this case the Boolean is assumed to be True.  If you set the Boolean to False, then the dose is given according to the schedule and is not \"prn\" or \"as needed\".",
      "min" : 0,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "rim",
        "map" : ".outboundRelationship[typeCode=PRCN].target[classCode=OBS, moodCode=EVN, code=\"as needed\"].value=boolean or codable concept"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "boolean"
      },
      {
        "code" : "CodeableConcept"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-Dosage.asNeeded[x]"
    }]
  }
}