LOINC

LOINC Code 6902-1: Methadone Ql (Gast fld)

6902-1 is a LOINC code used to identify Methadone Ql (Gast fld) 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 Methadone. It is commonly used with the system or sample type Gast fld.

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 Methadone. It is commonly used with the system or sample type Gast fld.

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: DEPRECATED

What it does not mean

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

Key facts

  • Deprecated Methadone
  • Methadone
  • Addiction; Dolophin; Dolophine; DRUG/TOXICOLOGY; Drugs; Drugs of abuse; GAST; Gastric contents; Gastric fluid; Illicit; Level; Mass concentration; METD; Methadose; MTD; Ordinal; Point in time; PotentialForAbuse; Ql; Qual; Qualitative; Random; Screen

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

Methadone Ql (Gast fld)Deprecated MethadoneDeprecated Methadone Gast QlMethadoneDRUG/TOXMethadone, Stomach fluidMCnc

Frequently asked questions

Code details

Code6902-1
SystemLOINC
Display nameMethadone Ql (Gast fld)
DescriptionMethadone
Short nameDeprecated Methadone Gast Ql
ComponentMethadone
PropertyMCnc
TimingPt
System (specimen)Gast fld
ScaleOrd
ClassDRUG/TOX
StatusDEPRECATED

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released1.0h(2)
Last changed2.36

Consumer names

Methadone, Stomach fluid

Part names

MethadoneMCncPtGast fldOrdMass ConcentrationPoint in time (spot)Gastric fluid

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 6902-1 | HealthAssure