LOINC Code 21755-4: CACNA1A 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 CACNA1A 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

• CACNA1A gene CAG repeats [Presence] in Blood or Tissue by Molecular genetics method
• CACNA1A gene.CAG repeats
• Problem to subnature of calcium channel
• APCA; Ataxia-6; BI; Blood; CACH4; CACN3; CACNA1A gene CAG Rpt; CACNL1A4; Calcium channel, voltage-dependent, P/Q type, alpha 1A subunit; CAV2.1; EA2; FHM; Genetics; Heredity; Heritable; HPCA; Inherited; MHP; MHP1; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.NUCREPEAT; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; Repeat; SCA6; Screen; Spinocerebellar ataxia; 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