HLA Mismatch

**Semantic type:** Laboratory or Test Result

**Definition:** The state when a recipient of a hematopoietic stem cell transplant is not fully matched with their donor for HLA-A, HLA-B, HLA-C, and HLA-DRB1.

**Synonyms:** - HLA Allele Mismatch - HLA Locus Mismatch - HLA Serotype Mismatch - Mismatch - Non-match - Non-match