D89.42✓ Billable
Idiopathic mast cell activation syndrome
Code Hierarchy
┌3Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)├D80-D89Certain disorders involving the immune mechanism (D80-D89)├D89Other disorders involving the immune mechanism, not elsewhere classified
└D89.42Idiopathic mast cell activation syndrome
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