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.

LOINCBoth

LOINC Code 10384-6: A,B variant NOS Ag Ql (RBC)

Name: LOINC Code 10384-6: A,B variant NOS Ag Ql (RBC)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:18.500Z

10384-6 is a LOINC code used to identify A,B variant NOS Ag Ql (RBC) 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 A,B variant NOS Ag. It is commonly used with the system or sample type RBC.

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 A,B variant NOS Ag. It is commonly used with the system or sample type RBC.

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: DEPRECATED
Order vs observation: Both

What it does not mean

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

Key facts

Deprecated A,B variant NOS Ag [Presence] on Red Blood Cells
A,B variant NOS Ag
A,B Var NOS; AB subgroup; Antigen; Antigens; B Var NOS; BLOOD BANK; Erythrocytes; Ordinal; Other; Point in time; PR; QL; Qual; Qualitative; Random; Red blood cells; Red blood corpusles; 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

A,B variant NOS Ag Ql (RBC)Deprecated A,B variant NOS Ag [Presence] on Red Blood CellsDeprecated A,B Var NOS Ag RBC QlA,B variant NOS AgBLDBKA,B Variant NOS antigen, Red blood cellsPrThr

Frequently asked questions

Code details

Code10384-6

SystemLOINC

Display nameA,B variant NOS Ag Ql (RBC)

DescriptionA,B variant NOS Ag

Short nameDeprecated A,B Var NOS Ag RBC Ql

ComponentA,B variant NOS Ag

PropertyPrThr

TimingPt

System (specimen)RBC

ScaleOrd

ClassBLDBK

StatusDEPRECATED

Order/ObservationBoth

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0i

Last changed2.65

Consumer names

A,B Variant NOS antigen, Red blood cells

Part names

A,B variant NOS AgPrThrPtRBCOrdPresence or ThresholdPoint in time (spot)Red Blood Cells

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.