LOINCActiveObservation

LOINC Code 96979-0: Trisomy 13, trisomy 18 or triploidy risk Calc Ql (Plasma cell-free+WBC DNA) [Interp]

96979-0 is a LOINC code used to identify Trisomy 13, trisomy 18 or triploidy risk Calc Ql (Plasma cell-free+WBC DNA) [Interp] 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 Fetal trisomy 13+trisomy 18+triploidy risk. It is commonly used with the system or sample type WBC.DNA+Plas.cfDNA.

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 Fetal trisomy 13+trisomy 18+triploidy risk. It is commonly used with the system or sample type WBC.DNA+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: Observation
  • Method: Calculated

What it does not mean

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

Key facts

Trisomy 13, trisomy 18 or triploidy risk [Interpretation] in Plasma cell-free+WBC DNA Qualitative by calculation
Fetal trisomy 13+trisomy 18+triploidy risk
The ordinal interpretation for the combined fetal trisomy 13+trisomy 18+triploidy risk is determined in cases where the SNP-based noninvasive prenatal test did not return a result due to low fetal fraction (FF) or the inability to make a high-confidence call. FF is known to be lower in cases of trisomy 13, trisomy 18 and digynic (maternal) triploidy, but not all cases of low FF is due to aneuploidy. Combined risk calculations may include the FF value, gestational age (GA), maternal weight (MW) and prior risk data to determine the overall risk.[PMID30014528]
Calc; Calculation; Edward syndrome; Gyn; Gynecology; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Leukocytes; Molecular pathology; MOLPATH; OB; ObGyn; Obstetrics; Ordinal; Pl; Plasma; Plsm; Point in time; QL; Qual; Qualitative; Random; Screen; T13+T18+Trip risk; Ts; WBC.DNA+cfDNA; WBCs; White blood cells

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

Trisomy 13, trisomy 18 or triploidy risk Calc Ql (Plasma cell-free+WBC DNA) [Interp]Trisomy 13, trisomy 18 or triploidy risk [Interpretation] in Plasma cell-free+WBC DNA Qualitative by calculationT13+T18+Trip risk WBC.DNA+cfDNA Calc-ImpFetal trisomy 13+trisomy 18+triploidy riskMOLPATHFetal Trisomy 13, trisomy 18 or triploidy riskImp

Frequently asked questions

Code details

Code96979-0
SystemLOINC
Display nameTrisomy 13, trisomy 18 or triploidy risk Calc Ql (Plasma cell-free+WBC DNA) [Interp]
DescriptionFetal trisomy 13+trisomy 18+triploidy risk
Short nameT13+T18+Trip risk WBC.DNA+cfDNA Calc-Imp
ComponentFetal trisomy 13+trisomy 18+triploidy risk
PropertyImp
TimingPt
System (specimen)WBC.DNA+Plas.cfDNA
ScaleOrd
MethodCalculated
ClassMOLPATH
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.70
Last changed2.70

Consumer names

Fetal Trisomy 13, trisomy 18 or triploidy risk

Part names

Fetal trisomy 13+trisomy 18+triploidy riskImpPtWBC.DNA+Plas.cfDNAOrdCalculatedFetal trisomy 13, trisomy 18 or triploidy riskImpression/interpretation of studyPoint in time (spot)Plasma cell-free+WBC DNA

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.