ICD-10 Diagnosis Code D89.42

Idiopathic mast cell activation syndrome

Diagnosis Code D89.42

ICD-10: D89.42
Short Description: Idiopathic mast cell activation syndrome
Long Description: Idiopathic mast cell activation syndrome
This is the 2017 version of the ICD-10-CM diagnosis code D89.42

New 2017 ICD-10 Code
D89.42 is new to ICD-10 code set for the FY 2017, effective October 1, 2016.

Code Classification
  • Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50–D89)
    • Certain disorders involving the immune mechanism (D80-D89)
      • Oth disorders involving the immune mechanism, NEC (D89)
Previous Code
Previous Code D89.41
Next Code
D89.43 Next Code