LOINC Code 85485-1: Bg sup(b) Ag Ql (RBC)

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 B little g super little b 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: ACTIVE
• Order vs observation: Observation

What it does not mean

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

Key facts

• Bg sup(b) Ag [Presence] on Red Blood Cells
• B little g super little b Ag
• This term should be used when the antigen being tested is located on the surface of the red blood cell. The B little g super little b Ag is the same HLA antigen as HLA-B17 found on tissue and non-erythrocyte cells.
• Antigen; Antigens; Bennett-Goodspeed Antigen; Bg sup(b); BLOOD BANK; Erythrocytes; Hematology; Heme; HLA-B17; 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

Frequently asked questions