LOINC Code 21756-2: ATN1 gene CAG repeats Molgen Ql (Bld/Tiss)

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 ATN1 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

• ATN1 gene CAG repeats [Presence] in Blood or Tissue by Molecular genetics method
• ATN1 gene.CAG repeats
• ATN1 gene CAG Rpt; Atrophin 1; B37; Blood; D12S755E; Dentatorubral-pallidoluysian atrophy; DRPLA; Genetics; Heredity; Heritable; HRS; Inherited; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.NUCREPEAT; Myoclonic epilepsy with choreoathetosis; Naito-oyanagi disease; NOD; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; Repeat; Screen; Tissue; Tissue, unspecified; 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

Frequently asked questions