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C96.21 Aggressive systemic mastocytosis
BackC96Other and unspecified malignant neoplasms of lymphoid, hematopoietic and related tissueCategory8 →C96.0Multifocal and multisystemic (disseminated) Langerhans-cell histiocytosisCategoryC96.2Malignant mast cell neoplasmCategory4 →C96.20Malignant mast cell neoplasm, unspecifiedCategoryC96.21Aggressive systemic mastocytosisCategoryC96.22Mast cell sarcomaCategoryC96.29Other malignant mast cell neoplasmCategoryC96.4Sarcoma of dendritic cells (accessory cells)CategoryC96.5Multifocal and unisystemic Langerhans-cell histiocytosisCategoryC96.6Unifocal Langerhans-cell histiocytosisCategoryC96.9Malignant neoplasm of lymphoid, hematopoietic and related tissue, unspecifiedCategoryC96.AHistiocytic sarcomaCategoryC96.ZOther specified malignant neoplasms of lymphoid, hematopoietic and related tissueCategory
CategoryCODABLE
C96.21
Aggressive systemic mastocytosis
- Chapter
- II · Neoplasms
- Section
- C81-C96
- Valid from
Source
CMS ICD-10-CM Tabular List, edition FY2026.