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D89 Other disorders involving the immune mechanism, not elsewhere classified

BackD89.0Polyclonal hypergammaglobulinemiaD89.1CryoglobulinemiaD89.2Hypergammaglobulinemia, unspecifiedD89.3Immune reconstitution syndromeD89.4Mast cell activation syndrome and related disorders6 →D89.40Mast cell activation, unspecifiedD89.41Monoclonal mast cell activation syndromeD89.42Idiopathic mast cell activation syndromeD89.43Secondary mast cell activationD89.44Hereditary alpha tryptasemiaD89.49Other mast cell activation disorderD89.8Other specified disorders involving the immune mechanism, not elsewhere classified5 →D89.81Graft-versus-host disease4 →D89.810Acute graft-versus-host diseaseD89.811Chronic graft-versus-host diseaseD89.812Acute on chronic graft-versus-host diseaseD89.813Graft-versus-host disease, unspecifiedD89.82Autoimmune lymphoproliferative syndrome [ALPS]D89.83Cytokine release syndrome6 →D89.831Cytokine release syndrome, grade 1D89.832Cytokine release syndrome, grade 2D89.833Cytokine release syndrome, grade 3D89.834Cytokine release syndrome, grade 4D89.835Cytokine release syndrome, grade 5D89.839Cytokine release syndrome, grade unspecifiedD89.84IgG4-related diseaseD89.89Other specified disorders involving the immune mechanism, not elsewhere classifiedD89.9Disorder involving the immune mechanism, unspecified
Category
D89
Other disorders involving the immune mechanism, not elsewhere classified
EXCLUDES
Excludes1: hyperglobulinemia NOS (R77.1)
monoclonal gammopathy (of undetermined significance) (D47.2)
Excludes2: transplant failure and rejection (T86.-)
Chapter
III · Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
Section
D80-D89
Valid from
Source

CMS ICD-10-CM Tabular List, edition FY2026.

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