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 49838-6: Neural tube defect risk Qn (population)

Name: LOINC Code 49838-6: Neural tube defect risk Qn (population)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T08:59:33.943Z

49838-6 is a LOINC code used to identify Neural tube defect risk Qn (population) 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 Neural tube defect risk. It is commonly used with the system or sample type ^Population.

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 Neural tube defect risk. It is commonly used with the system or sample type ^Population.

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

Neural tube defect risk [Likelihood] in Population
Neural tube defect risk
Anencephaly; Chemistry; Neural tube def; Neural tube defct; NTD; ONTD; Open spina bifida; OSB; 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

Neural tube defect risk Qn (population)Neural tube defect risk [Likelihood] in PopulationNeural tube defect risk PopNeural tube defect riskCHEMNeural tube defect risk, populationLikelihood

Frequently asked questions

Code details

Code49838-6

SystemLOINC

Display nameNeural tube defect risk Qn (population)

DescriptionNeural tube defect risk

Short nameNeural tube defect risk Pop

ComponentNeural tube defect risk

PropertyLikelihood

TimingPt

System (specimen)^Population

ScaleQn

ClassCHEM

Example unitsRisk

StatusACTIVE

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released2.22

Last changed2.73

Consumer names

Neural tube defect risk, population

Part names

Neural tube defect riskLikelihoodPt^PopulationQnPoint 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.