Current
D89 — Other disorders involving the immune mechanism, not elsewhere classified
Part of Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism , block Certain disorders involving the immune mechanism (D80-D89) .
Official Notes
Child Codes
- D89.0 Polyclonal hypergammaglobulinemia Billable
- D89.1 Cryoglobulinemia Billable
- D89.2 Hypergammaglobulinemia, unspecified Billable
- D89.3 Immune reconstitution syndrome Billable
- D89.4 Mast cell activation syndrome and related disorders Has subcodes
- D89.8 Other specified disorders involving the immune mechanism, not elsewhere classified Has subcodes
- D89.9 Disorder involving the immune mechanism, unspecified Billable
FY 2027 effective October 1, 2026 · CDC NCHS and CMS