LOINCActiveObservation

LOINC Code 64083-9: MGMT gene methylation score Molgen (Tiss) [Ratio]

64083-9 is a LOINC code used to identify MGMT gene methylation score Molgen (Tiss) [Ratio] 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 MGMT gene methylation score. It is commonly used with the system or sample type 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 MGMT gene methylation score. It is commonly used with the system or sample type 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

  • MGMT gene methylation score in Tissue by Molecular genetics method
  • MGMT gene methylation score
  • DNA methylation; MGMT methylation score; Molecular genetics; Molecular pathology; MOLPATH; PCR; Point in time; QNT; Quan; Quant; Quantitative; Random; Ratios; Rto; Tissue; Tissue, unspecified

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

MGMT gene methylation score Molgen (Tiss) [Ratio]MGMT gene methylation score in Tissue by Molecular genetics methodMGMT methylation score TissMGMT gene methylation scoreMOLPATHMGMT gene methylation score, TissueRatio

Frequently asked questions

Code details

Code64083-9
SystemLOINC
Display nameMGMT gene methylation score Molgen (Tiss) [Ratio]
DescriptionMGMT gene methylation score
Short nameMGMT methylation score Tiss
ComponentMGMT gene methylation score
PropertyRatio
TimingPt
System (specimen)Tiss
ScaleQn
MethodMolgen
ClassMOLPATH
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.36
Last changed2.73

Consumer names

MGMT gene methylation score, Tissue

Part names

MGMT gene methylation scoreRatioPtTissQnMolgenPoint in time (spot)Tissue and SmearsMolecular 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.