{"resourceType":"CodeSystem","id":"data-absent-reason","meta":{"lastUpdated":"2021-01-17T07:06:13.533+11:00"},"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-wg","valueCode":"oo"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-standards-status","valueCode":"normative"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-normative-version","valueCode":"4.0.0"},{"url":"http://hl7.org/fhir/StructureDefinition/structuredefinition-fmm","valueInteger":5}],"url":"http://terminology.hl7.org/CodeSystem/data-absent-reason","identifier":[{"system":"urn:ietf:rfc:3986","value":"urn:oid:2.16.840.1.113883.4.642.4.1048"}],"version":"4.0.1","name":"DataAbsentReason","title":"DataAbsentReason","status":"active","experimental":false,"date":"2021-01-17T07:06:13+11:00","description":"Used to specify why the normally expected content of the data element is missing.","caseSensitive":true,"valueSet":"http://hl7.org/fhir/ValueSet/data-absent-reason","content":"complete","concept":[{"code":"unknown","display":"Unknown","definition":"The value is expected to exist but is not known.","concept":[{"code":"asked-unknown","display":"Asked But Unknown","definition":"The source was asked but does not know the value."},{"code":"temp-unknown","display":"Temporarily Unknown","definition":"There is reason to expect (from the workflow) that the value may become known."},{"code":"not-asked","display":"Not Asked","definition":"The workflow didn't lead to this value being known."},{"code":"asked-declined","display":"Asked But Declined","definition":"The source was asked but declined to answer."}]},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"Using \"masked\" may be breach of security or confidentiality, but there are times when its use is required to support alternate workflows for gaining access to denied information."}],"code":"masked","display":"Masked","definition":"The information is not available due to security, privacy or related reasons."},{"code":"not-applicable","display":"Not Applicable","definition":"There is no proper value for this element (e.g. last menstrual period for a male)."},{"code":"unsupported","display":"Unsupported","definition":"The source system wasn't capable of supporting this element."},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"It may be linked by internal references (e.g. xml:id). This usually implies that the value could not be represented in the correct format - this may be due to system limitations, or this particular data value."}],"code":"as-text","display":"As Text","definition":"The content of the data is represented in the resource narrative."},{"code":"error","display":"Error","definition":"Some system or workflow process error means that the information is not available.","concept":[{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"This is sometimes an output value from measuring devices."}],"code":"not-a-number","display":"Not a Number (NaN)","definition":"The numeric value is undefined or unrepresentable due to a floating point processing error."},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"This is sometimes an output value from measuring devices."}],"code":"negative-infinity","display":"Negative Infinity (NINF)","definition":"The numeric value is excessively low and unrepresentable due to a floating point processing error."},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"This is sometimes an output value from measuring devices."}],"code":"positive-infinity","display":"Positive Infinity (PINF)","definition":"The numeric value is excessively high and unrepresentable due to a floating point processing error."}]},{"code":"not-performed","display":"Not Performed","definition":"The value is not available because the observation procedure (test, etc.) was not performed."},{"extension":[{"url":"http://hl7.org/fhir/StructureDefinition/codesystem-concept-comments","valueString":"This is most often associated with required bindings that do not include the actual code used, but may be used with other data types."}],"code":"not-permitted","display":"Not Permitted","definition":"The value is not permitted in this context (e.g. due to profiles, or the base data types)."}]}