FHIR CI-Build
TerminologyThis is the Continuous Integration Build of FHIR (will be incorrect/inconsistent at times).
See the Directory of published versions 
| Orders and Observations Work Group |
Maturity Level: N | Normative (from v4.0.0) | Use Context: Country: World |
Official URL: http://hl7.org/fhir/ValueSet/observation-interpretation
|
Version: 6.0.0-ballot3 | |||
| active as of 2025-10-14 | Computable Name: ObservationInterpretationCodes | |||
| Flags: | OID: 2.16.840.1.113883.4.642.3.399 | |||
This value set is used in the following places:
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 (Observation Interpretation), in v3 in ObservationInterpretation (CWE) in R1 (Representative Realm) and in FHIR in 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.
Generated Narrative: ValueSet observation-interpretation
Last updated: 2025-10-14T00:00:46.442Z
Profile: Shareable ValueSet
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation version 📦3.0.0
This expansion generated 14 Oct 2025
ValueSet
Expansion performed internally based on codesystem ObservationInterpretation v3.0.0 (CodeSystem)
This value set contains 57 concepts
| System | Code | Display | status |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
_GeneticObservationInterpretation |
GeneticObservationInterpretation | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
CAR |
Carrier | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
Carrier |
Carrier | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
_ObservationInterpretationChange |
ObservationInterpretationChange | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
B |
Better | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
D |
Significant change down | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
U |
Significant change up | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
W |
Worse | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
_ObservationInterpretationExceptions |
ObservationInterpretationExceptions | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
< |
Off scale low | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
> |
Off scale high | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
AC |
Anti-complementary substances present | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
IE |
Insufficient evidence | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
QCF |
Quality control failure | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
TOX |
Cytotoxic substance present | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
_ObservationInterpretationNormality |
ObservationInterpretationNormality | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
A |
Abnormal | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
AA |
Critical abnormal | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
HH |
Critical high | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
LL |
Critical low | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
H |
High | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
H> |
Significantly high | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
HU |
Significantly high | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
L |
Low | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
L< |
Significantly low | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
LU |
Significantly low | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
N |
Normal | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
_ObservationInterpretationSusceptibility |
ObservationInterpretationSusceptibility | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
I |
Intermediate | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
MS |
moderately susceptible | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
NCL |
No CLSI defined breakpoint | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
NS |
Non-susceptible | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
R |
Resistant | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
SYN-R |
Synergy - resistant | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
S |
Susceptible | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
SDD |
Susceptible-dose dependent | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
SYN-S |
Synergy - susceptible | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
VS |
very susceptible | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
EX |
outside threshold | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
HX |
above high threshold | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
LX |
below low threshold | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
HM |
Hold for Medical Review | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
ObservationInterpretationDetection |
ObservationInterpretationDetection | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
IND |
Indeterminate | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
E |
Equivocal | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
NEG |
Negative | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
ND |
Not detected | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
POS |
Positive | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
DET |
Detected | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
ObservationInterpretationExpectation |
ObservationInterpretationExpectation | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
EXP |
Expected | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
UNE |
Unexpected | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
OBX |
Interpretation qualifiers in separate OBX segments | deprecated |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
ReactivityObservationInterpretation |
ReactivityObservationInterpretation | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
NR |
Non-reactive | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
RR |
Reactive | |
http://terminology.hl7.org/CodeSystem/v3-ObservationInterpretation |
WR |
Weakly reactive |
See the full registry of value sets defined as part of FHIR.
Explanation of the columns that may appear on this page:
| Lvl | A few code lists that FHIR defines are hierarchical - each code is assigned a level. For value sets, levels are mostly used to organize codes for user convenience, but may follow code system hierarchy - see Code System for further information |
| Source | 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). If the code is in italics, this indicates that the code is not selectable ('Abstract') |
| 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 |
FHIR ®© HL7.org 2011+. FHIR R6 hl7.fhir.core#6.0.0-ballot3 generated on Tue, Oct 14, 2025 00:05+0000.
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