LOINC Code 75393-9: HTT gene CAG repeats Molgen Ql (Amnio fld/CVS)

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 HTT gene.CAG repeats. It is commonly used with the system or sample type Amnio fld/CVS.

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

• HTT gene CAG repeats [Presence] in Amniotic fluid or Chorionic villus sample by Molecular genetics method
• HTT gene.CAG repeats
• Prenatal diagnosis of Huntington disease (HD) by detecting the presence of a CAG expansion in the HTT gene in amniotic fluid or chorionic villus sample (CVS). This test may be performed when there is a family history of a CAG expansion.
• 5HTT; 5-HTT; 5-HTTLPR; AF; Amn; Amn fl; Amn/CVS; Amnio; Amniotic flu; Amniotic fluid; Chorionic villi; Chorionic villus sample; Genetics; Gyn; Gynecology; HD gene; Heredity; Heritable; hSERT; HTT; HTT gene CAG Rpt; huntingtin; Huntington chorea; Huntington disease; Huntington's disease; Inherited; IT15; Molecular genetics; Molecular pathology; MOLPATH; MOLPATH.NUCREPEAT; OB; ObGyn; Obstetrics; OCD1; Ordinal; PCR; Point in time; PR; QL; Qual; Qualitative; Random; Repeat; Screen; SERT; SERT1; solute carrier family 6 (neurotransmitter transporter), member 4

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