LOINC Code 75975-3: Chr 13+18+21 trisomy Dosage of chromosome-specific cfDNA Ql (cfDNA)

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 Fetal chromosome 13+18+21 trisomy. It is commonly used with the system or sample type Plas.cfDNA.

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: Dosage of chromosome specific cf DNA

What it does not mean

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

Key facts

• Fetal Chromosome 13+18+21 trisomy [Presence] based on Plasma cell-free DNA by Dosage of chromosome-specific cfDNA
• Fetal chromosome 13+18+21 trisomy
• Indicates the presence of trisomy 13, 18 and/or 21 based on noninvasive prenatal screening methods using cell-free DNA (cfDNA) in maternal plasma. Result does not differentiate which trisomy is suspected or detected, if present.
• Chr 13+18+21 Ts; Chromosom; Chromosomes; Genetics; Heredity; Heritable; Inherited; Molecular pathology; MOLPATH; MOLPATH.TRISOMY; Ordinal; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; Spec; Ts

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