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.

LOINCObservation

LOINC Code 1151-0: Lu NOS Ag Ql (RBC BPU)

Name: LOINC Code 1151-0: Lu NOS Ag Ql (RBC BPU)
Creator: HealthAssure Clinical Team
Published: 2026-05-25T17:13:11.347Z

1151-0 is a LOINC code used to identify Lu NOS Ag Ql (RBC BPU) 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 L little u NOS Ag. It is commonly used with the system or sample type RBC^BPU.

Reviewed by HealthAssure Clinical TeamUpdated 25 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 L little u NOS Ag. It is commonly used with the system or sample type RBC^BPU.

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: Observation

What it does not mean

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

Key facts

Deprecated Lu NOS Ag [Presence] on Red Blood Cells from Blood product unit
L little u NOS Ag
Antigen; Antigens; BLOOD BANK; Blood product unit; Blood Product Unit (Pack); Erythrocytes; L (little u) NOS; Left; Levo; Lu; Lu NOS; 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.

Related SNOMED CT concepts

705114005SNOMED CT mapping for Lu NOS Ag Ql (RBC BPU) (1151-0)

Related observations and tests

SNOMED_CT 705114005high

LOINC Code System

Source: LOINC-SNOMED cooperation package

Common synonyms

Lu NOS Ag Ql (RBC BPU)Deprecated Lu NOS Ag [Presence] on Red Blood Cells from Blood product unitDeprecated Lu NOS Ag RBC BPU QlL little u NOS AgBLDBKLu NOS antigen, Blood Product UnitPrThr

Frequently asked questions

Code details

Code1151-0

SystemLOINC

Display nameLu NOS Ag Ql (RBC BPU)

DescriptionL little u NOS Ag

Short nameDeprecated Lu NOS Ag RBC BPU Ql

ComponentL little u NOS Ag

PropertyPrThr

TimingPt

System (specimen)RBC^BPU

ScaleOrd

ClassBLDBK

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.65

Consumer names

Lu NOS antigen, Blood Product Unit

Part names

L little u NOS AgPrThrPtRBC^BPUOrdLu NOS AgPresence or ThresholdPoint 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.