D89.41
BillableMonoclonal mast cell activation syndrome
D89.41 is the ICD-10-CM code for Monoclonal mast cell activation syndrome. It is a billable, specific code valid for reimbursement.
D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
No additional coding notes for this code.
Medications indicated for this condition
FDA labeling- Belumosudil›
- Betamethasone Sodium Phosphate, Betamethasone Acetate, Lidocaine, Povidine Iodine›
- EmapalumabInterferon gamma Blocker [EPC]›
- IbrutinibKinase Inhibitor [EPC]›
- remestemcel-L›
- Rilonacept›
Drugs whose FDA labeling lists this condition's category among its indications. Informational only — not a treatment recommendation or medical advice.
Frequently asked questions
- What is ICD-10 code D89.41?
- D89.41 is the ICD-10-CM code for "Monoclonal mast cell activation syndrome". It falls under D50-D89 Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
- Is D89.41 a billable code?
- Yes — D89.41 is a billable, specific ICD-10-CM code valid for reimbursement.
Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.
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