Cross-Version Extension for Dosage.asNeededFor in R5

Context of Use

This extension may be used in the following contexts:

• element Dosage (For version R4B)
• extension http://hl7.org/fhir/4.3/StructureDefinition/extension-Dosage
• element Dosage (For version R4)
• extension http://hl7.org/fhir/4.0/StructureDefinition/extension-Dosage
• element Dosage (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-Dosage
• element Basic (For version R2)

Name	Flags	Card.	Type	Description & Constraints
Extension		0..*	Extension	Take "as needed" (for x)
extension		..0
value[x]		1..	CodeableConcept
url				"http://hl7.org/fhir/5.0/StructureDefinition/extension-Dosage.asNeededFor"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r5-dos.asNeededFor",
  "url" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-Dosage.asNeededFor",
  "name" : "XVerExtensionDosage.asNeededForR5",
  "title" : "Cross-Version Extension for Dosage.asNeededFor in R5",
  "status" : "active",
  "experimental" : false,
  "publisher" : "HL7 FHIR Standard",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  }],
  "description" : "Cross-Version Extension for Dosage.asNeededFor. Valid in versions R2, R3, R4, R4B\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" : "4.3"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "4.3"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Dosage"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/4.3/StructureDefinition/extension-Dosage"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "4.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "4.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Dosage"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Dosage"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Dosage"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-Dosage"
  },
  {
    "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 based on a precondition for taking the Medication (CodeableConcept).",
      "comment" : "Can express \"as needed\" with a reason by including the CodeableConcept.  In this case the Boolean is assumed to be False, then the dose is given according to the schedule and is not \"prn\" or \"as needed\".",
      "min" : 0,
      "max" : "*",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "v2",
        "map" : "TQ1-9"
      },
      {
        "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" : "CodeableConcept"
      }]
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/5.0/StructureDefinition/extension-Dosage.asNeededFor"
    }]
  }
}