What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 104192-0: Guanidinoacetate methyltransferase deficiency (DBS) [Interp]

Name: LOINC Code 104192-0: Guanidinoacetate methyltransferase deficiency (DBS) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:18.503Z

104192-0 is a LOINC code used to identify Guanidinoacetate methyltransferase deficiency (DBS) [Interp] 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 Guanidinoacetate methyltransferase deficiency. It is commonly used with the system or sample type Bld.dot.

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 Guanidinoacetate methyltransferase deficiency. It is commonly used with the system or sample type Bld.dot.

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

What it does not mean

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

Key facts

Guanidinoacetate methyltransferase deficiency newborn screen interpretation
Guanidinoacetate methyltransferase deficiency
Blood; Chemistry; DBS; Dried blood spot; Filter paper; FP; GAA; GAMT; glycocyamine; guanidinoacetic acid; guanidoacetic acid; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Methyl transferase; Nominal; Point in time; Random; WB; Whole blood

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

Guanidinoacetate methyltransferase deficiency (DBS) [Interp]Guanidinoacetate methyltransferase deficiency newborn screen interpretationGAMT DBS-ImpGuanidinoacetate methyltransferase deficiencyCHEMGuanidinoacetate methyltransferase deficiency, Dried blood spotImp

Frequently asked questions

Code details

Code104192-0

SystemLOINC

Display nameGuanidinoacetate methyltransferase deficiency (DBS) [Interp]

DescriptionGuanidinoacetate methyltransferase deficiency

Short nameGAMT DBS-Imp

ComponentGuanidinoacetate methyltransferase deficiency

PropertyImp

TimingPt

System (specimen)Bld.dot

ScaleNom

ClassCHEM

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.77

Last changed2.77

Consumer names

Guanidinoacetate methyltransferase deficiency, Dried blood spot

Part names

Guanidinoacetate methyltransferase deficiencyImpPtBld.dotNomImpression/interpretation of studyPoint in time (spot)DBS

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.