What does this LOINC code represent?

This LOINC code identifies a lab observation, measurement, question, or clinical concept in a standardized format.

Is this enough to understand my test result?

No. The code identifies the test or observation, but the interpretation depends on the actual result, reference range, and clinical context.

LOINCActiveBoth

LOINC Code 75566-0: Monosomy X prior risk Based on maternal age Qn (fetus)

Name: LOINC Code 75566-0: Monosomy X prior risk Based on maternal age Qn (fetus)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:55.159Z

75566-0 is a LOINC code used to identify Monosomy X prior 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 Monosomy X prior 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 Monosomy X prior 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: Both
Method: Based on maternal age

What it does not mean

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

Key facts

Fetal Monosomy X prior risk [Likelihood] Based on maternal age
Monosomy X prior risk
Fetal; from Mat age; Gyn; Gynecology; Molecular pathology; MOLPATH; Ms X prior risk; OB; ObGyn; Obstetrics; Point in time; QNT; Quan; Quant; Quantitative; Random; 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

Monosomy X prior risk Based on maternal age Qn (fetus)Fetal Monosomy X prior risk [Likelihood] Based on maternal ageFet Ms X prior risk from Mat ageMonosomy X prior riskMOLPATHFetal Monosomy X Prior RiskLikelihood

Frequently asked questions

Code details

Code75566-0

SystemLOINC

Display nameMonosomy X prior risk Based on maternal age Qn (fetus)

DescriptionMonosomy X prior risk

Short nameFet Ms X prior risk from Mat age

ComponentMonosomy X prior risk

PropertyLikelihood

TimingPt

System (specimen)^Fetus

ScaleQn

MethodBased on maternal age

ClassMOLPATH

Example unitsrisk

StatusACTIVE

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.50

Last changed2.73

Consumer names

Fetal Monosomy X Prior Risk

Part names

Monosomy X prior 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.