v2+ Vocabulary
0.3.0 - Working Draft to present the concept ideas (FO)

v2+ Vocabulary - Local Development build (v0.3.0) built by the FHIR (HL7® FHIR® Standard) Build Tools. See the Directory of published versions

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

Official URL: http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretationV220 Version: 2.2.0
Active as of 2025-08-05 Computable Name: ObservationInterpretationV220
Other Identifiers: OID:2.16.840.1.113883.5.83

Copyright/Legal: HL7 Inc., 2024

HL7-defined code system of concepts which specify a categorical assessment of an observation value. Used in HL7 Version 2.x messaging in the OBX segment. 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.

This Code system is referenced in the content logical definition of the following value sets:

Properties

This code system defines the following properties for its concepts

NameCodeURITypeDescription
version introduced versionIntroduced http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionIntroduced string version when was this code introduced
version deprecated versionDeprecated http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#versionDeprecated string version when was this code deprecated
status status http://hl7.org/fhir/concept-properties#status code A code that indicates the status of the concept. Typical values are active, experimental, deprecated, and retired
comment, to suppress IG-publisher warning, to be replaced with standard later comment http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#comment string A string that provides additional detail pertinent to the use or understanding of the concept
usage usage http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#usage string usage notes for this code
modified modified http://terminology.hl7.org/v2plusvocab/CodeSystem/Property#modified dateTime date of last modification

Concepts

This case-sensitive code system http://terminology.hl7.org/v2plusvocab/CodeSystem/observationInterpretationV220 defines the following codes:

CodeDisplayDefinitionversion introducedmodifiedDeutsch (German, de)
< Off scale low Off scale low 2.1 2015-07-13
> Off scale high Off scale high 2.2 2015-07-13
A Abnormal Abnormal 2.1 2015-07-13 anormal
AA Critically abnormal Critically abnormal 2.1 2015-07-13
AC Anti-complementary substances present Anti-complementary substances present 2.7 2015-07-13
B Better Better (use when direction not relevant) 2.2 2025-08-02 besser
D Significant change down Significant change down 2.1 2015-07-13 Deutlicher Trend nach unten
DET Detected Detected 2.7 2015-07-13
H High High 2.1 2015-07-13
HH Critically high Critically high 2.1 2015-07-13
HM Hold for Medical Review Hold for Medical Review 2.8 2015-07-13
HU Very high Very high 2015-07-13
I Intermediate Intermediate 2.1 2015-07-13
IE Insufficient evidence Insufficient evidence 2015-07-13
IND Indeterminate Indeterminate 2.7 2015-07-13
L Low Low 2.2 2015-07-13
LL Critically low Critically low 2.1 2015-07-13
LU Very low Very low 2015-07-13
MS Moderately susceptible Moderately susceptible. Indicates for microbiology susceptibilities only. 2.1 2015-07-13 mäßig empfindlich
N Normal Normal 2.2 2015-07-13
ND Not Detected Not Detected 2.7 2015-07-13
NEG Negative Negative 2.7 2015-07-13
NR Non-reactive Non-reactive 2.7 2015-07-13
NS Non-susceptible Non-susceptible 2015-07-13
OBX Interpretation qualifiers in separate OBX segments Interpretation qualifiers in separate OBX segments 2.8 2015-07-13
POS Positive Positive 2.7 2015-07-13
QCF Quality Control Failure Quality Control Failure 2.7 2015-07-13
R Resistant Resistant 2.1 2015-07-13
RR Reactive Reactive 2.7 2015-07-13
S Susceptible Susceptible 2.1 2015-07-13
SDD Susceptible Susceptible-dose dependent 2015-07-13
SYN-R Synergy - resistant Synergy - resistant 2015-07-13
SYN-S Synergy - susceptible Synergy - susceptible 2015-07-13
TOX Cytotoxic substance present Cytotoxic substance present 2.7 2015-07-13
U Significant change up Significant change up 2.1 2015-07-13 Deutlicher Trend nach oben
VS Very susceptible Very susceptible. Indicates for microbiology susceptibilities only. 2.1 2025-08-02 Sehr empfindlich
W Worse Worse 2.2 2015-07-13 Verschlechterung
WR Weakly reactive Weakly reactive 2.7 2015-07-13
null No range defined, or normal ranges don't apply No range defined, or normal ranges don't apply 2.1 2015-07-13 Kein Referenzbereich / Referenzbereich nicht anwendbar