HLA-A & B Genotyping (INACTIVE as of 07/02/12: Refer to 2006984 or 2006986)
Ordering Recommendation
Polymerase Chain Reaction/Sequence Specific Oligonucleotide Probe Hybridization
3-7 days
New York DOH Approval Status
Specimens from New York clients will be sent out to a New York DOH approved laboratory, if possible.
Submit With Order
ARUP Consult®
Disease Topics
Specimen Required
Patient Preparation
Lavender (EDTA), pink (K2EDTA), or yellow (ACD Solution A or B). 
Specimen Preparation
Transport 5 mL whole blood. (Min: 3 mL) 
Storage/Transport Temperature
Room temperature. 
Unacceptable Conditions
Specimens collected in green (sodium or lithium heparin). 
Ambient: 72 hours; Refrigerated: 1 week; Frozen: Unacceptable 
Reference Interval
By report
Interpretive Data
Background Information for HLA-A & B Genotyping:
For immunization/vaccination trials or to aid the clinical diagnosis of diseases strongly associated with the HLA-A and B loci.
Methodology: PCR followed by Sequence Specific Oligonucleotide Probe Hybridization of HLA-A and HLA-B loci.
Analytical Sensitivity & Specificity: Low to medium resolution of HLA-A and B loci.
Limitations: The presence of a disease-associated HLA combination does not establish a diagnosis. If less than 2 alleles are reported for a locus, the patient is likely homozygous. Rare diagnostic errors can occur due to primer or probe site mutations. This test is not sufficient for comprehensive HLA evaluation for clinical hematopoietic stem cell transplantation (refer to HLA Bone Marrow Transplantation Evaluation-2002806).

Counseling and informed consent are recommended for genetic testing. Consent forms are available online at

 Order this test for HLA-A and B phenotype and single antigen HLA-A and B identification. Please specify antigens.
CPT Code(s)
83891 Isolation; 83900 x2 Multiplex Amplification; 83896 x10 Nucleic acid probes; 88384 Probes 11-50; 88385 Probes 51-250; 83912 Interpretation and report -Additional CPT code modifiers may be required for procedures performed to test for oncologic or inherited disorders.
Component Test Code*Component Chart NameLOINC
2002785HLA Class I, Locus B*, Allele 113299-3
2002786HLA Class I, Locus B*, Allele 213299-3
2002790HLA Class I, Locus A*, Allele 138548-4
2002791HLA Class I, Locus A*, Allele 238548-4
2002848HLA-AB Genotyping Interpretation
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.

Performed at UUHC - H&I Lab