LOINCActiveBoth

LOINC Code 75728-6: HTR2A gene c.74C>A Molgen Ql (Bld/Tiss)

75728-6 is a LOINC code used to identify HTR2A gene c.74C>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 HTR2A gene.c.74C>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 HTR2A gene.c.74C>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

  • HTR2A gene c.74C>A [Presence] in Blood or Tissue by Molecular genetics method
  • HTR2A gene.c.74C>A
  • 5-HT-2A; 5-hydroxytryptamine receptor 2A gene; Blood; Genetics; Heredity; Heritable; HTR2A c.74C>A; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; Screen; serotonin receptor 2A gene; 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

HTR2A gene c.74C>A Molgen Ql (Bld/Tiss)HTR2A gene c.74C>A [Presence] in Blood or Tissue by Molecular genetics methodHTR2A c.74C>A Bld/T QlHTR2A gene.c.74C>AMOLPATH.MUTHTR2A gene c.74C>A, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code75728-6
SystemLOINC
Display nameHTR2A gene c.74C>A Molgen Ql (Bld/Tiss)
DescriptionHTR2A gene.c.74C>A
Short nameHTR2A c.74C>A Bld/T Ql
ComponentHTR2A gene.c.74C>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 released2.50
Last changed2.56

Consumer names

HTR2A gene c.74C>A, Blood or tissue specimen

Part names

HTR2A gene.c.74C>APrThrPtBld/TissOrdMolgenHTR2A gene c.74C>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.