B cell deficiency agammaglobulinemia UMLS_CUI:C0086438 OMIM:613500 OMIM:613501 DOID:618 MESH:D000361 NCI:C26931 DOID:2583 disease_ontology OMIM mapping confirmed by DO. [SN]. OMIM:PS601495 OMIM:615214 SNOMEDCT_US_2020_03_01:267512002 ICD9CM:279.00 OMIM:612692 A B cell deficiency that is caused by a reduction in all types of gamma globulins. ICD10CM:D80.1 IGHM MESH:D000361 UMLS_CUI:C0001768 OMIM:601495 SNOMEDCT_US_2020_03_01:119250001 hypogammaglobulinemia mu heavy chain deficiency