| D80 | Immunodeficiency with predominantly antibody defects | NON-BILLABLE CODE |
| D80.0 | Hereditary hypogammaglobulinemia | BILLABLE CODE |
| D80.1 | Nonfamilial hypogammaglobulinemia | BILLABLE CODE |
| D80.2 | Selective deficiency of immunoglobulin A [IgA] | BILLABLE CODE |
| D80.3 | Selective deficiency of immunoglobulin G [IgG] subclasses | BILLABLE CODE |
| D80.4 | Selective deficiency of immunoglobulin M [IgM] | BILLABLE CODE |
| D80.5 | Immunodeficiency with increased immunoglobulin M [IgM] | BILLABLE CODE |
| D80.7 | Transient hypogammaglobulinemia of infancy | BILLABLE CODE |
| D80.8 | Other immunodeficiencies with predominantly antibody defects | BILLABLE CODE |
| D80.9 | Immunodeficiency with predominantly antibody defects, unspecified | BILLABLE CODE |
