HL7 v2.8.2 Vocabulary
0.2.0 - ci-build

HL7 v2.8.2 Vocabulary, published by HL7/FO. This guide is not an authorized publication; it is the continuous build for version 0.2.0 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/frankoemig/hl7.v2.terminology.v282/ and changes regularly. See the Directory of published versions

ValueSet: Interpretation Codes (2.8.2 - 2.2.0) (Experimental)

Official URL: http://terminology.hl7.org/v2plusvocab/ValueSet/hl7VSinterpretationCode Version: 2.2.0
Active as of 2026-03-13 Computable Name: Hl7VSinterpretationCode
Other Identifiers: OID:2.16.840.1.113883.1.11.78, urn:ietf:rfc:3986#Uniform Resource Identifier (URI)#http://terminology.hl7.org/v2plusvocab/ValueSet/v2-0078

Copyright/Legal: HL7 Inc., 2026

A categorical assessment, providing a rough qualitative interpretation of the observation value, such as “normal”/ “abnormal”,”low” / “high”, “better” / “worse”, “susceptible” / “resistant”, “expected”/ “not expected”. The value set is intended to be for ANY use where coded representation of an interpretation is needed. Notes: This is being communicated in v2.x in OBX-8, in v3 in ObservationInterpretation (CWE) in R1 (Representative Realm) and in FHIR Observation.interpretation. Historically these values come from the laboratory domain, and these codes are extensively used. The value set binding is extensible, so codes outside the value set that are needed for interpretation concepts (i.e. particular meanings) that are not included in the value set can be used, and these new codes may also be added to the value set and published in a future version.

References

This value set is not used here; it may be used elsewhere (e.g. specifications and/or implementations that use this content)

Logical Definition (CLD)

 

Expansion

Expansion performed internally based on codesystem Interpretation Codes (2.8.2 - 2.2.0) v2.2.0 (CodeSystem)

This value set contains 39 concepts

SystemCodeDisplay (en)DefinitionJSONXML
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  <Off scale lowOff scale low
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  >Off scale highOff scale high
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  AAbnormalAbnormal
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  AACritically abnormalCritically abnormal
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  ACAnti-complementary substances presentAnti-complementary substances present
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  BBetterBetter (use when direction not relevant)
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  DSignificant change downSignificant change down
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  DETDetectedDetected
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  HHighHigh
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  HHCritically highCritically high
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  HMHold for Medical ReviewHold for Medical Review
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  HUVery highVery high
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  IIntermediateIntermediate
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  IEInsufficient evidenceInsufficient evidence
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  INDIndeterminateIndeterminate
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  LLowLow
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  LLCritically lowCritically low
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  LUVery lowVery low
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  MSModerately susceptibleModerately susceptible. Indicates for microbiology susceptibilities only.
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  NNormalNormal
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  NDNot DetectedNot Detected
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  NEGNegativeNegative
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  NRNon-reactiveNon-reactive
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  NSNon-susceptibleNon-susceptible
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  OBXInterpretation qualifiers in separate OBX segmentsInterpretation qualifiers in separate OBX segments
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  POSPositivePositive
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  QCFQuality Control FailureQuality Control Failure
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  RResistantResistant
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  RRReactiveReactive
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  SSusceptibleSusceptible
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  SDDSusceptibleSusceptible-dose dependent
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  SYN-RSynergy - resistantSynergy - resistant
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  SYN-SSynergy - susceptibleSynergy - susceptible
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  TOXCytotoxic substance presentCytotoxic substance present
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  USignificant change upSignificant change up
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  VSVery susceptibleVery susceptible. Indicates for microbiology susceptibilities only.
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  WWorseWorse
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  WRWeakly reactiveWeakly reactive
http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretation  nullNo range defined, or normal ranges don't applyNo range defined, or normal ranges don't apply

Explanation of the columns that may appear on this page:

Level A few code lists that FHIR defines are hierarchical - each code is assigned a level. In this scheme, some codes are under other codes, and imply that the code they are under also applies
System The source of the definition of the code (when the value set draws in codes defined elsewhere)
Code The code (used as the code in the resource instance)
Display The display (used in the display element of a Coding). If there is no display, implementers should not simply display the code, but map the concept into their application
Definition An explanation of the meaning of the concept
Comments Additional notes about how to use the code