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2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Neoplasms 140-239 > Neoplasms Of Uncertain Behavior 235-238 > Neoplasm Of Uncertain Behavior Of Other And Unspecified Sites And Tissues 238.* >

2008 ICD-9-CM Diagnosis 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 solid tumor consisting of a dense infiltration of MAST CELLS. It is generally benign.
  • 238.5 is a specific code that can be used to specify a diagnosis
  • 238.5 contains 3 index entries
  • View the ICD-9-CM Volume 1 238.* hierarchy

238.5 also known as:

  • Mast cell tumor NOS
  • Mastocytoma NOS


Index entries containing 238.5:

Mast cell
  • tumor (M9740/1) 238.5
    • malignant (M9740/3) 202.6
Mastocytoma (M9740/1) 238.5
  • malignant (M9740/3) 202.6
Tumor (M8000/1) - see also Neoplasm, by site, unspecified nature
  • mast cell (M9740/1) 238.5
    • malignant (M9740/3) 202.6