2012 ICD-9-CM Diagnosis Code 238.5
Neoplasm of uncertain behavior of histiocytic and mast cells
- A nodule of mast cells. Mastocytomas can involve the skin, subcutaneous tissue, and sometimes muscle. Also called a mast cell tumor.
- A localized tumor composed of sheets of mast cells without atypia. It includes the cutaneous mastocytoma which involves the dermis and subcutaneous tissue, and the extracutaneous mastocytoma. Most cases of extracutaneous mastocytoma have been reported in the lung.
- nodular cutaneous mast cell infiltrate, which is usually present at birth or soon after as a solitary nodule, although three to four lesions may occur; lesions typical of urticaria pigmentosa may occur later.
- A heterogeneous group of disorders characterized by the abnormal growth and accumulation of mast cells in one or more organ systems. Recent data suggest that most variants of mastocytosis are clonal disorders. (WHO, 2001) -- 2003
- Short description: Mastocytoma NOS.
- ICD-9-CM 238.5 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
- You are viewing the 2012 version of ICD-9-CM 238.5.
- More recent version(s) of ICD-9-CM 238.5: 2013.
238.5 Alternative Terminology
Applies To
Convert 238.5 to ICD-10-CM 
ICD-9-CM Volume 2 Index entries containing back-references to 238.5:
tumor (M9740/1) 
