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.

LOINCActiveObservation

LOINC Code 49588-7: First trimester maternal screen with nuchal translucency Nar [Interp]

Name: LOINC Code 49588-7: First trimester maternal screen with nuchal translucency Nar [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.941Z

49588-7 is a LOINC code used to identify First trimester maternal screen with nuchal translucency Nar [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 First trimester maternal screen with nuchal translucency. It is commonly used with the system or sample type ^Patient.

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 First trimester maternal screen with nuchal translucency. It is commonly used with the system or sample type ^Patient.

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

First trimester maternal screen with nuchal translucency [Interpretation] Narrative
First trimester maternal screen with nuchal translucency
1st trimester maternal scn; 1st trimester scn+NT; Chemistry; Choriogonadotropin & Pregnancy associated plasma protein A; Choriogonadotropin & Pregnancy associated plasma protein A & Nuchal translucency; Gestation; Gyn; Gynecology; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Narrative; OB; ObGyn; Obstetrics; Point in time; Prenatal; Random; Report; Scn; Scr; Scrn

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

First trimester maternal screen with nuchal translucency Nar [Interp]First trimester maternal screen with nuchal translucency [Interpretation] Narrative1st trimester scn+NT Patient-ImpFirst trimester maternal screen with nuchal translucencyCHEMInterpretation of First trimester maternal screen with nuchal translucency test resultImp

Frequently asked questions

Code details

Code49588-7

SystemLOINC

Display nameFirst trimester maternal screen with nuchal translucency Nar [Interp]

DescriptionFirst trimester maternal screen with nuchal translucency

Short name1st trimester scn+NT Patient-Imp

ComponentFirst trimester maternal screen with nuchal translucency

PropertyImp

TimingPt

System (specimen)^Patient

ScaleNar

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.73

Consumer names

Interpretation of First trimester maternal screen with nuchal translucency test result

Part names

First trimester maternal screen with nuchal translucencyImpPt^PatientNarImpression/interpretation of studyPoint 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.