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 49092-0: Second trimester quad maternal screen Nar [Interp]

Name: LOINC Code 49092-0: Second trimester quad maternal screen Nar [Interp]
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.937Z

49092-0 is a LOINC code used to identify Second trimester quad maternal screen 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 Second trimester quad maternal screen. It is commonly used with the system or sample type Ser/Plas.

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 Second trimester quad maternal screen. It is commonly used with the system or sample type Ser/Plas.

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

Second trimester quad maternal screen [Interpretation] in Serum or Plasma Narrative
Second trimester quad maternal screen
2nd; 2nd trimester 4 screen; Alpha-1-fetoprotein & Choriogonadotropin & Estriol.unconjugated & Inhibin A; Chemistry; Gestation; Impression; Impression/interpretation of study; Impressions; Interp; Interpretation; Maternal screen 4; Narrative; Pl; Plasma; Plsm; Point in time; Prenatal; Quadruple screen; Random; Report; Scn; Scr; Scrn; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; Tetra screen

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

Second trimester quad maternal screen Nar [Interp]Second trimester quad maternal screen [Interpretation] in Serum or Plasma Narrative2nd trimester 4 screen SerPl-ImpSecond trimester quad maternal screenCHEMInterpretation of Second trimester quad maternal screen test result, BloodImp

Frequently asked questions

Code details

Code49092-0

SystemLOINC

Display nameSecond trimester quad maternal screen Nar [Interp]

DescriptionSecond trimester quad maternal screen

Short name2nd trimester 4 screen SerPl-Imp

ComponentSecond trimester quad maternal screen

PropertyImp

TimingPt

System (specimen)Ser/Plas

ScaleNar

ClassCHEM

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.21

Last changed2.73

Consumer names

Interpretation of Second trimester quad maternal screen test result, Blood

Part names

Second trimester quad maternal screenImpPtSer/PlasNarImpression/interpretation of studyPoint in time (spot)Serum or Plasma

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.