LOINCActiveBoth

LOINC Code 40873-2: CBS gene c.919G>A Molgen Ql (Bld/Tiss)

40873-2 is a LOINC code used to identify CBS gene c.919G>A Molgen Ql (Bld/Tiss) 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 CBS gene.c.919G>A. 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 CBS gene.c.919G>A. 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: Both
  • Method: Molgen

What it does not mean

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

Key facts

  • CBS gene c.919G>A [Presence] in Blood or Tissue by Molecular genetics method
  • CBS gene.c.919G>A
  • 919G>A; Blood; CBS c.919G>A; cystathionine-beta-synthase; Genetics; Gly307Ser; Heredity; Heritable; HIP4; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; Ordinal; PCR; Point in time; PR; Pyridoxine responsive homocystinuria; 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

CBS gene c.919G>A Molgen Ql (Bld/Tiss)CBS gene c.919G>A [Presence] in Blood or Tissue by Molecular genetics methodCBS c.919G>A Bld/T QlCBS gene.c.919G>AMOLPATH.MUTCBS gene c.919G>A, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code40873-2
SystemLOINC
Display nameCBS gene c.919G>A Molgen Ql (Bld/Tiss)
DescriptionCBS gene.c.919G>A
Short nameCBS c.919G>A Bld/T Ql
ComponentCBS gene.c.919G>A
PropertyPrThr
TimingPt
System (specimen)Bld/Tiss
ScaleOrd
MethodMolgen
ClassMOLPATH.MUT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.15
Last changed2.56

Consumer names

CBS gene c.919G>A, Blood or tissue specimen

Part names

CBS gene.c.919G>APrThrPtBld/TissOrdMolgenCBS gene c.919G>APresence or ThresholdPoint 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 40873-2 | HealthAssure