LOINCActiveObservation

LOINC Code 47223-3: Trisomy 18 risk Based on maternal age Qn (fetus)

47223-3 is a LOINC code used to identify Trisomy 18 risk Based on maternal age 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 Fetal trisomy 18 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 Fetal trisomy 18 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
  • Method: Based on maternal age

What it does not mean

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

Key facts

  • Fetal Trisomy 18 risk [Likelihood] Based on maternal age
  • Fetal trisomy 18 risk
  • Chemistry; Edward syndrome; Fetal; from Mat age; Gyn; Gynecology; OB; ObGyn; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; Risk; T18 risk; Ts; Ts 18 risk

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 risk Based on maternal age Qn (fetus)Fetal Trisomy 18 risk [Likelihood] Based on maternal ageFet Ts 18 risk from Mat ageFetal trisomy 18 riskCHEMLikelihoodPt

Frequently asked questions

Code details

Code47223-3
SystemLOINC
Display nameTrisomy 18 risk Based on maternal age Qn (fetus)
DescriptionFetal trisomy 18 risk
Short nameFet Ts 18 risk from Mat age
ComponentFetal trisomy 18 risk
PropertyLikelihood
TimingPt
System (specimen)^Fetus
ScaleQn
MethodBased on maternal age
ClassCHEM
Example unitsRisk
StatusACTIVE
Order/ObservationObservation

Flags

BillableNo
Valid clinical useNo

Source

SourceLOINC
Version2.82
Releasemain
First released2.19
Last changed2.73

Consumer names

Fetal Trisomy 18 risk

Part names

Fetal trisomy 18 riskLikelihoodPt^FetusQnBased on maternal agePoint 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.

LOINC Code 47223-3 | HealthAssure