LOINC Code 53758-9: HLA-DRB1 SBT High resolution Nom (Specimen)

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-DRB1 SBT. It is commonly used with the system or sample type XXX.

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: High resolution

What it does not mean

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

Key facts

• HLA-DRB1 SBT [Type] in Specimen by High resolution
• HLA-DRB1 SBT
• HLA-DRB typing identifies HLA allelic polymorphism using DNA amplified by Polymerase Chain Reaction(PCR). HLA typing is vital for bone marrow transplantation. Well-matched donors increase patient survival and decreases incidence of graft vs.host disease. HLA-DRB1 sequence typing is used to identify unrelated allogeneic bone marrow donors who are HLA-DRB genotypic matches to the recipient. For DRB1, the allelic variability is mainly in the second exon, clustered in three distinct regions that show variance. If fewer than two alleles is reported for a locus, the patient is likely to be homozygous for that locus, but the possibility of the presence of rare alleles exists. Information from ARUP Laboratories 2007 07 17.
• Genetics; Heredity; Heritable; HLA ANTIGEN; Human Leukocyte Antigen; Inherited; Misc; Miscellaneous; Nominal; Other; Point in time; Random; Sequence based typing; Spec; To be specified in another part of the message; Typ; Unspecified

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