LOINCActiveObservation

LOINC Code 67816-9: Trisomy 18 + Trisomy 13 risk Qn (fetus)

67816-9 is a LOINC code used to identify Trisomy 18 + Trisomy 13 risk Qn (fetus) 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 Trisomy 18+Trisomy 13 risk. It is commonly used with the system or sample type ^Fetus.

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 Trisomy 18+Trisomy 13 risk. It is commonly used with the system or sample type ^Fetus.

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

What it does not mean

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

Key facts

  • Trisomy 18 + Trisomy 13 risk [Likelihood] in Fetus
  • Trisomy 18+Trisomy 13 risk
  • Chemistry; Edward syndrome; Fetal; Gyn; Gynecology; OB; ObGyn; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Risk; Trisomy 18+13 risk; 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

Trisomy 18 + Trisomy 13 risk Qn (fetus)Trisomy 18 + Trisomy 13 risk [Likelihood] in FetusTrisomy 18+13 risk FetusTrisomy 18+Trisomy 13 riskCHEMFetal Trisomy 18 + trisomy 13 riskLikelihood

Frequently asked questions

Code details

Code67816-9
SystemLOINC
Display nameTrisomy 18 + Trisomy 13 risk Qn (fetus)
DescriptionTrisomy 18+Trisomy 13 risk
Short nameTrisomy 18+13 risk Fetus
ComponentTrisomy 18+Trisomy 13 risk
PropertyLikelihood
TimingPt
System (specimen)^Fetus
ScaleQn
ClassCHEM
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.38
Last changed2.50

Consumer names

Fetal Trisomy 18 + trisomy 13 risk

Part names

Trisomy 18+Trisomy 13 riskLikelihoodPt^FetusQnTrisomy 18 + Trisomy 13 riskPoint in time (spot)

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.