What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveObservation

LOINC Code 79713-4: TPMT gene product metabolic activity interpretation Molgen Ql (Bld/Tiss) [Interp]

Name: LOINC Code 79713-4: TPMT gene product metabolic activity interpretation Molgen Ql (Bld/Tiss) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T09:00:01.838Z

79713-4 is a LOINC code used to identify TPMT gene product metabolic activity interpretation Molgen Ql (Bld/Tiss) [Interp] in laboratory and clinical observation data. You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges. LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component TPMT gene product metabolic activity interpretation. It is commonly used with the system or sample type Bld/Tiss.

Reviewed by HealthAssure Clinical TeamUpdated 21 May 2026

What is this code?

LOINC codes identify tests, measurements, observations, survey items, and clinical questions in a standardized way. It is associated with the component TPMT gene product metabolic activity interpretation. It is commonly used with the system or sample type Bld/Tiss.

When is it used?

Used in lab systems, EHRs, and clinical data exchange.
May identify a test, observation, survey item, or clinical document request rather than a diagnosis.
Status: ACTIVE
Order vs observation: Observation
Method: Molgen

What it does not mean

The code identifies the observation or test, not the actual result.

Key facts

TPMT gene product metabolic activity interpretation in Blood or Tissue Qualitative by Molecular genetics method

TPMT gene product metabolic activity interpretation

The TPMT gene product metabolic activity interpretation is determined by the reporting lab and returned with the structured test results. The Preferred Answer list associated with this term is based on the Clinical Pharmacogenetics Implementation Consortium (CPIC) guidelines for reporting TPMT gene product metabolic activity (phenotype), which apply to both genetic and enzymatic assays (this LOINC term represents a genetic assay). This specific interpretation would be considered a separate observation made by the lab in addition to the primary reported results (e.g., genotype or measured activity level) and it could be included with other assay-specific observations, which would ideally support the interpretation value. [https//cpicpgx.org/resources.html]

Activ; Actvty; Blood; Drug metabolism; Gene prod met act imp; Impression; Impression/interpretation of study; Impressions; Interp; Interpret; Interpretation; Interpt; Intrp; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.PHARMG; Movements; Ordinal; PCR; Phenotype; Point in time; QL; Qual; Qualitative; Random; Screen; thiopurine S-methyltransferase; Thiopurine S-methyltransferase gene; Tissue; Tissue, unspecified; TPMT gene prod met act imp; WB; Whole blood; Whole blood or Tissue

Where you may see this code

You may see this code in lab systems, lab reports, EHR exports, interoperability feeds, or other structured clinical data exchanges.

Common synonyms

TPMT gene product metabolic activity interpretation Molgen Ql (Bld/Tiss) [Interp]TPMT gene product metabolic activity interpretation in Blood or Tissue Qualitative by Molecular genetics methodTPMT gene prod met act imp Bld/T-ImpTPMT gene product metabolic activity interpretationMOLPATH.PHARMGTPMT gene product metabolic activity interpretation, Blood or tissue specimenImp

Frequently asked questions

Code details

Code79713-4

SystemLOINC

Display nameTPMT gene product metabolic activity interpretation Molgen Ql (Bld/Tiss) [Interp]

DescriptionTPMT gene product metabolic activity interpretation

Short nameTPMT gene prod met act imp Bld/T-Imp

ComponentTPMT gene product metabolic activity interpretation

PropertyImp

TimingPt

System (specimen)Bld/Tiss

ScaleOrd

MethodMolgen

ClassMOLPATH.PHARMG

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.54

Last changed2.73

Consumer names

TPMT gene product metabolic activity interpretation, Blood or tissue specimen

Part names

TPMT gene product metabolic activity interpretationImpPtBld/TissOrdMolgenImpression/interpretation of studyPoint in time (spot)Blood or TissueMolecular genetics

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from LOINC. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.