LOINCActiveBoth

LOINC Code 21709-1: MTHFR gene targeted mutation analysis Molgen Nom (Bld/Tiss)

21709-1 is a LOINC code used to identify MTHFR gene targeted mutation analysis Molgen Nom (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 MTHFR gene targeted mutation analysis. 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 MTHFR gene targeted mutation analysis. 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

  • MTHFR gene mutations found [Identifier] in Blood or Tissue by Molecular genetics method Nominal
  • MTHFR gene targeted mutation analysis
  • 5,10-methylenetetrahydrofolate reductase gene; Blood; Genetics; Heredity; Heritable; Identity or presence; Inherited; methylenetetrahydrofolate reductase (NAD(P)H); Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; Mut; Mut Anl; Mutations; NADPH; Nominal; PCR; Point in time; Random; Tissue; Tissue, unspecified; UniversalLabOrders; Vascular risk; 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

MTHFR gene targeted mutation analysis Molgen Nom (Bld/Tiss)MTHFR gene mutations found [Identifier] in Blood or Tissue by Molecular genetics method NominalMTHFR gene Mut Anl Bld/TMTHFR gene targeted mutation analysisMOLPATH.MUTMTHFR gene targeted mutation analysis, Blood or tissue specimenPrid

Frequently asked questions

Code details

Code21709-1
SystemLOINC
Display nameMTHFR gene targeted mutation analysis Molgen Nom (Bld/Tiss)
DescriptionMTHFR gene targeted mutation analysis
Short nameMTHFR gene Mut Anl Bld/T
ComponentMTHFR gene targeted mutation analysis
PropertyPrid
TimingPt
System (specimen)Bld/Tiss
ScaleNom
MethodMolgen
ClassMOLPATH.MUT
StatusACTIVE
Order/ObservationBoth

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0m
Last changed2.73

Consumer names

MTHFR gene targeted mutation analysis, Blood or tissue specimen

Part names

MTHFR gene targeted mutation analysisPridPtBld/TissNomMolgenPresence or IdentityPoint 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 21709-1 | HealthAssure