LOINC Code 94438-9: HLA-DRB3 & HLA-DRB4 & HLA DRB5 IgG FC 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-DRB3 & HLA-DRB4 & HLA DRB5 Ab.IgG. 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: Observation
• Method: Flow cytometry

What it does not mean

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

Key facts

• HLA-DRB3 and HLA-DRB4 and HLA DRB5 IgG Ab [Identifier] in Serum or Plasma by Flow cytometry (FC)
• HLA-DRB3 & HLA-DRB4 & HLA DRB5 Ab.IgG
• High specificity assays,such as the Luminex single bead system, can detect HLA epitopes at a detailed molecular allele-equivalent level. Therefore, many laboratories using this assay will report, along with the serologic type, the molecular type, and also the mean fluorescence intensity (MFI) in a single answer. This term is intended to cover the existing reporting formats for HLA-DRB3, 4, and 5 antibody specificity.
• ABS; Aby; Antby; Anti; Antibodies; Antibody; Autoantibodies; Autoantibody; Dynamic; FC; Genetics; Heredity; Heritable; HLA ANTIGEN; HLA-DRB3 + 4 + 5; HLA-DRB3 + 4 + 5 Ab.IgG; HLA-DRB5; Human Leukocyte Antigen; Identity or presence; Immune globulin G; Immunoglobulin G; Inherited; Nominal; Pl; Plasma; Plsm; Point in time; Random; SerP; SerPl; 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

Frequently asked questions