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 33981-2: TBP gene CAG repeats Molgen Ql (Bld/Tiss)

Name: LOINC Code 33981-2: TBP gene CAG repeats Molgen Ql (Bld/Tiss)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:21.186Z

33981-2 is a LOINC code used to identify TBP gene CAG repeats 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 TBP gene.CAG repeats. 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 TBP gene.CAG repeats. 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

TBP gene CAG repeats [Presence] in Blood or Tissue by Molecular genetics method

TBP gene.CAG repeats

Ataxia-17; Ataxin 17; Blood; Genetics; GTF2D; GTF2D1; Heredity; Heritable; HGNC15735; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.NUCREPEAT; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; Repeat; SCA; SCA17; Screen; Spinocerebellar ataxia; TATA box binding protein; TBP gene CAG Rpt; TFIID; Tissue; Tissue, unspecified; Transcription initiation factor; 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

TBP gene CAG repeats Molgen Ql (Bld/Tiss)TBP gene CAG repeats [Presence] in Blood or Tissue by Molecular genetics methodTBP gene CAG Rpt Bld/T QlTBP gene.CAG repeatsMOLPATH.NUCREPEATTBP gene CAG Repeats, Blood or tissue specimenPrThr

Frequently asked questions

Code details

Code33981-2

SystemLOINC

Display nameTBP gene CAG repeats Molgen Ql (Bld/Tiss)

DescriptionTBP gene.CAG repeats

Short nameTBP gene CAG Rpt Bld/T Ql

ComponentTBP gene.CAG repeats

PropertyPrThr

TimingPt

System (specimen)Bld/Tiss

ScaleOrd

MethodMolgen

ClassMOLPATH.NUCREPEAT

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.09

Last changed2.70

Consumer names

TBP gene CAG Repeats, Blood or tissue specimen

Part names

TBP gene.CAG repeatsPrThrPtBld/TissOrdMolgenTBP gene CAG repeatsPresence 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.