LOINC Code 107916-9: HLA-A and B and C (class I) Ab.IgG present IA Nom

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 HLA-A & B & C (class I) Ab.IgG present. It is commonly used with the system or sample type Ser/Plas.

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: Both
• Method: IA

What it does not mean

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

Key facts

• HLA-A and B and C (class I) Ab.IgG present [Identifier] in Serum or Plasma by Immunoassay
• HLA-A & B & C (class I) Ab.IgG present
• A,B; EIA; ELFA; ELISA; Enzyme immunoassay; HLA ANTIGEN; HLA class I; HLA I IgG pre; HLA-A+B; HLA-A+B+C; HLA-A+B+C (class I); Human Leukocyte Antigen; IAA; Identity or presence; Immune globulin G; Immunoglobulin G; MEIA; Nominal; Pl; Plasma; Plsm; Point in time; Random; SerP; SerPl; SerPlas; Serum; Serum or plasma; SR; SUDS

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