LOINCObservation

LOINC Code 940-7: Bombay Ag Ql (RBC BPU)

940-7 is a LOINC code used to identify Bombay 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 Bombay 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 Bombay 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 Bombay Ag [Presence] on Red Blood Cells from Blood product unit
  • Bombay Ag
  • Antigen; Antigens; BLOOD BANK; Blood product unit; Blood Product Unit (Pack); Erythrocytes; Ordinal; 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

Bombay Ag Ql (RBC BPU)Deprecated Bombay Ag [Presence] on Red Blood Cells from Blood product unitDeprecated Bombay Ag RBC BPU QlBombay AgBLDBKBombay antigen, Blood Product UnitPrThr

Frequently asked questions

Code details

Code940-7
SystemLOINC
Display nameBombay Ag Ql (RBC BPU)
DescriptionBombay Ag
Short nameDeprecated Bombay Ag RBC BPU Ql
ComponentBombay 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 changed2.61

Consumer names

Bombay antigen, Blood Product Unit

Part names

Bombay AgPrThrPtRBC^BPUOrdPresence 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.

LOINC Code 940-7 | HealthAssure