LOINCActiveObservation

LOINC Code 53040-2: Drug metabolism sequence variation interpretation Molgen Ql (Bld/Tiss) [Interp]

53040-2 is a LOINC code used to identify Drug metabolism sequence variation 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 Drug metabolism sequence variation 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 Drug metabolism sequence variation 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

  • Genetic variation's effect on drug metabolism
  • Drug metabolism sequence variation interpretation
  • Predicted phenotype for drug efficacy. A single marker interpretation value known to allow (responsive) or prevent (resistant) the drug to perform. Prior to the LOINC release 2.56 (June 2016), the answer list was updated per the recommendations of the Clinical Pharmacogenetics Implementation Consortium (CPIC). The previous answer list number was LL609-9, and three of the answer strings and LA codes are the same in the new list (ultrarapid metabolizer, intermediate metabolizer, and poor metabolizer). In the new answer list, the extensive metabolizer answer (LA10316-0) from LL609-9 has been replaced with two new answers (rapid metabolizer, normal metabolizer). LA10316-0 is still a valid LA code for the "extensive metabolizer" answer string.
  • Blood; Drug metab seq var interp; Drugs; Genetic; Genetics; Genomic; HL7.GENETICS; Impression; Impression/interpretation of study; Impressions; Interp; Interpret; Interpretation; Interpt; Intrp; Molecular genetics; MOLPATH.GENERAL; Ordinal; PCR; Point in time; QL; Qual; Qualitative; Random; Screen; Tissue; Tissue, unspecified; 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

Drug metabolism sequence variation interpretation Molgen Ql (Bld/Tiss) [Interp]Genetic variation's effect on drug metabolismDrug metab seq var interp-ImpDrug metabolism sequence variation interpretationHL7.GENETICSDrug metabolism sequence variation interpretation, Blood or tissue specimenImp

Frequently asked questions

Code details

Code53040-2
SystemLOINC
Display nameDrug metabolism sequence variation interpretation Molgen Ql (Bld/Tiss) [Interp]
DescriptionDrug metabolism sequence variation interpretation
Short nameDrug metab seq var interp-Imp
ComponentDrug metabolism sequence variation interpretation
PropertyImp
TimingPt
System (specimen)Bld/Tiss
ScaleOrd
MethodMolgen
ClassHL7.GENETICS
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.24
Last changed2.73

Consumer names

Drug metabolism sequence variation interpretation, Blood or tissue specimen

Part names

Drug metabolism sequence variation 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.

LOINC Code 53040-2 | HealthAssure