2013 ICD-9-CM Diagnosis Code 202.6
Malignant mast cell tumors
- A rare entity characterized by localized but destructive growth of a tumor consisting of highly atypical, immature mast cells.(WHO, 2001)
- A variant of mastocytosis characterized by multifocal, dense infiltrates of mast cells (15 or more mast cells in aggregates) detected in the bone marrow and/or other extracutaneous sites. (WHO, 2001) -- 2003
- Malignant neoplasm originating from mast cells.
- There are 9 ICD-9-CM codes below 202.6 that define this diagnosis in greater detail. Do not use this code on a reimbursement claim.
202.6 Excludes 
)Applies To
ICD-9-CM Volume 2 Index entries containing back-references to 202.6:
mast cell 
systemic (M9741/3) 
