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.

LOINCActiveObservation

LOINC Code 46743-1: Maple syrup urine disease (DBS) [Interp]

Name: LOINC Code 46743-1: Maple syrup urine disease (DBS) [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:31.753Z

46743-1 is a LOINC code used to identify Maple syrup urine disease (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 Maple syrup urine disease. 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 Maple syrup urine disease. 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: Observation

What it does not mean

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

Key facts

Maple syrup urine disease newborn screen interpretation
Maple syrup urine disease
Acer; Blood; Chemistry; DBS; Dis; Diseases; Dried blood spot; Dz; f377; Filter paper; FP; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; MSUD; 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

Maple syrup urine disease (DBS) [Interp]Maple syrup urine disease newborn screen interpretationMSUD DBS-ImpMaple syrup urine diseaseCHEMMaple syrup urine disease, Dried blood spotImp

Frequently asked questions

Code details

Code46743-1

SystemLOINC

Display nameMaple syrup urine disease (DBS) [Interp]

DescriptionMaple syrup urine disease

Short nameMSUD DBS-Imp

ComponentMaple syrup urine disease

PropertyImp

TimingPt

System (specimen)Bld.dot

ScaleNom

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.19

Last changed2.73

Consumer names

Maple syrup urine disease, Dried blood spot

Part names

Maple syrup urine diseaseImpPtBld.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.