LOINCActiveBoth

LOINC Code 40346-9: MT-CO1 gene m.7445A>G Molgen Ql (Bld/Tiss)

40346-9 is a LOINC code used to identify MT-CO1 gene m.7445A>G 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 MT-CO1 gene.m.7445A>G. 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 MT-CO1 gene.m.7445A>G. 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

  • MT-CO1 gene m.7445A>G [Presence] in Blood or Tissue by Molecular genetics method
  • MT-CO1 gene.m.7445A>G
  • Blood; COI; cytochrome c oxidase I gene; Cytochrome c oxidase polypeptide I gene; Genetics; Heredity; Heritable; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.MUTATIONS; MTCO1; MT-CO1 m.7445A>G; Ordinal; PCR; Point in time; PR; 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

MT-CO1 gene m.7445A>G Molgen Ql (Bld/Tiss)MT-CO1 gene m.7445A>G [Presence] in Blood or Tissue by Molecular genetics methodMT-CO1 m.7445A>G Bld/T QlMT-CO1 gene.m.7445A>GMOLPATH.MUTMT-CO1 gene m.7445A>G, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code40346-9
SystemLOINC
Display nameMT-CO1 gene m.7445A>G Molgen Ql (Bld/Tiss)
DescriptionMT-CO1 gene.m.7445A>G
Short nameMT-CO1 m.7445A>G Bld/T Ql
ComponentMT-CO1 gene.m.7445A>G
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

MT-CO1 gene m.7445A>G, Blood or tissue specimen

Part names

MT-CO1 gene.m.7445A>GPrThrPtBld/TissOrdMolgenMT-CO1 gene m.7445A>GPresence 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.