ICD-10-CM Codes 2026 (USA)

• D47.02	Systemic mastocytosis

• D47.0	Histiocytic and mast cell tumors of uncertain behavior
  D47.01	Cutaneous mastocytosis
  D47.02	Systemic mastocytosis
  D47.09	Other mast cell neoplasms of uncertain behavior
  D47.1	Chronic myeloproliferative disease
  D47.2	Monoclonal gammopathy
  D47.3	Essential (hemorrhagic) thrombocythemia
  D47.4	Osteomyelofibrosis
  D47.9	Neoplasm of uncertain behavior of lymphoid, hematopoietic and related tissue, unspecified
  D47.Z1	Post-transplant lymphoproliferative disorder (PTLD)
  D47.Z2	Castleman disease
  D47.Z9	Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue

Created by Peter Blahut, MD