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 1268-2: Not otherwise specified Ab Ql (S/P BPU)

Name: LOINC Code 1268-2: Not otherwise specified Ab Ql (S/P BPU)
Creator: HealthAssure Clinical Team
Published: 2026-05-21T11:17:23.604Z

1268-2 is a LOINC code used to identify Not otherwise specified Ab Ql (S/P 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 NOS Ab. It is commonly used with the system or sample type Ser/Plas^BPU.

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 NOS Ab. It is commonly used with the system or sample type Ser/Plas^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 Not otherwise specified Ab [Presence] in Serum or Plasma from Blood product unit
NOS Ab
ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; BLOOD BANK; Blood product unit; Blood Product Unit (Pack); Ordinal; Other; Pl; Plasma; Plsm; Point in time; PR; QL; Qual; Qualitative; Random; Screen; SerP; SerPl; SerPl^bpu; SerPlas; Serum; Serum or plasma; SR

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

Not otherwise specified Ab Ql (S/P BPU)Deprecated Not otherwise specified Ab [Presence] in Serum or Plasma from Blood product unitDeprecated Other Ab SerPl BPU QlNOS AbBLDBKNot Otherwise Specified antibody, Blood Product UnitPrThr

Frequently asked questions

Code details

Code1268-2

SystemLOINC

Display nameNot otherwise specified Ab Ql (S/P BPU)

DescriptionNOS Ab

Short nameDeprecated Other Ab SerPl BPU Ql

ComponentNOS Ab

PropertyPrThr

TimingPt

System (specimen)Ser/Plas^BPU

ScaleOrd

ClassBLDBK

StatusDEPRECATED

Order/ObservationObservation

Flags

BillableNo

Valid clinical useNo

Source

SourceLOINC

Version2.82

Releasemain

First released1.0

Last changed2.65

Consumer names

Not Otherwise Specified antibody, Blood Product Unit

Part names

NOS AbPrThrPtSer/Plas^BPUOrdOther AbPresence or ThresholdPoint in time (spot)Serum or Plasma^BPU

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.