Cross-Version Extension for Specimen.collection.fastingStatus[x] in R4

Context of Use

This extension may be used in the following contexts:

• element Specimen.collection (For version R3)
• extension http://hl7.org/fhir/3.0/StructureDefinition/extension-Specimen.collection
• element Specimen.collection (For version R2)
• extension http://hl7.org/fhir/1.0/StructureDefinition/extension-Specimen.collection

Name	Flags	Card.	Type	Description & Constraints
Extension		0..1	Extension	Whether or how long patient abstained from food and/or drink
extension		..0
value[x]		1..		Binding: todo (extensible): Codes describing the fasting status of the patient.
valueCodeableConcept			CodeableConcept
valueDuration			Duration
url				"http://hl7.org/fhir/4.0/StructureDefinition/extension-Specimen.collection.fastingStatus[x]"
Documentation for this format

{
  "resourceType" : "StructureDefinition",
  "id" : "xv-r4-spm.col.fastingStatus[x]",
  "url" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Specimen.collection.fastingStatus[x]",
  "name" : "XVerExtensionSpecimen.collection.fastingStatus[x]R4",
  "title" : "Cross-Version Extension for Specimen.collection.fastingStatus[x] in R4",
  "status" : "active",
  "experimental" : false,
  "publisher" : "Health Level Seven International (Orders and Observations)",
  "contact" : [{
    "telecom" : [{
      "system" : "url",
      "value" : "http://hl7.org/fhir"
    }]
  },
  {
    "telecom" : [{
      "system" : "url",
      "value" : "http://www.hl7.org/Special/committees/orders/index.cfm"
    }]
  }],
  "description" : "Cross-Version Extension for Specimen.collection.fastingStatus[x]. Valid in versions R2, R3\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" : "3.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "3.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Specimen.collection"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/3.0/StructureDefinition/extension-Specimen.collection"
  },
  {
    "extension" : [{
      "extension" : [{
        "url" : "startFhirVersion",
        "valueCode" : "1.0"
      },
      {
        "url" : "endFhirVersion",
        "valueCode" : "1.0"
      }],
      "url" : "http://hl7.org/fhir/StructureDefinition/version-specific-use"
    }],
    "type" : "element",
    "expression" : "Specimen.collection"
  },
  {
    "type" : "extension",
    "expression" : "http://hl7.org/fhir/1.0/StructureDefinition/extension-Specimen.collection"
  }],
  "type" : "Extension",
  "baseDefinition" : "http://hl7.org/fhir/StructureDefinition/Extension",
  "derivation" : "constraint",
  "differential" : {
    "element" : [{
      "path" : "Extension",
      "short" : "Whether or how long patient abstained from food and/or drink",
      "definition" : "Abstinence or reduction from some or all food, drink, or both, for a period of time prior to sample collection.",
      "comment" : "Representing fasting status using this element is preferred to representing it with an observation using a 'pre-coordinated code'  such as  LOINC 2005-7 (Calcium [Moles/​time] in 2 hour Urine --12 hours fasting), or  using  a component observation ` such as `Observation.component code`  = LOINC 49541-6 (Fasting status - Reported).",
      "requirements" : "Many diagnostic tests require fasting  to facilitate accurate interpretation.",
      "min" : 0,
      "max" : "1",
      "isModifier" : false,
      "mapping" : [{
        "identity" : "v2",
        "map" : "OBR-"
      }]
    },
    {
      "path" : "Extension.extension",
      "max" : "0"
    },
    {
      "path" : "Extension.value[x]",
      "min" : 1,
      "type" : [{
        "code" : "CodeableConcept"
      },
      {
        "code" : "Duration"
      }],
      "binding" : {
        "strength" : "extensible",
        "description" : "Codes describing the fasting status of the patient.",
        "valueSet" : "http://terminology.hl7.org/ValueSet/v2-0916|2.9"
      }
    },
    {
      "path" : "Extension.url",
      "fixedUri" : "http://hl7.org/fhir/4.0/StructureDefinition/extension-Specimen.collection.fastingStatus[x]"
    }]
  }
}