D89Oth disorders involving the immune mechanism, NEC
ICD-10-CM category (non-billable header) code — part of Certain disorders involving the immune mechanism (D80-D89)
Coding Notes
Excludes1 (never code both together)
- hyperglobulinemia NOS (R77.1)
- monoclonal gammopathy (of undetermined significance) (D47.2)
Excludes2 (not part of this condition — may code both)
- transplant failure and rejection (T86.-)
Subcategories (7)
- D89.0 Polyclonal hypergammaglobulinemia
- D89.1 Cryoglobulinemia
- D89.2 Hypergammaglobulinemia, unspecified
- D89.3 Immune reconstitution syndrome
- D89.4 Mast cell activation syndrome and related disorders
- D89.8 Oth disrd involving the immune mechanism, NEC
- D89.9 Disorder involving the immune mechanism, unspecified