Systemic mastocytosis

**Inclusion terms:** - Indolent systemic mastocytosis - Isolated bone marrow mastocytosis - Smoldering systemic mastocytosis - Systemic mastocytosis, with an associated hematological non-mast cell lineage disease (SM-AHNMD)

**Excludes1:** - aggressive systemic mastocytosis (C96.21) - mast cell leukemia (C94.3-)

**Code also:** - , if applicable, any associated hematological non-mast cell lineage disease, such as: - acute myeloid leukemia (C92.6-, C92.A-) - chronic myelomonocytic leukemia (C93.1-) - essential thrombocytosis (D47.3) - hypereosinophilic syndrome (D72.1) - myelodysplastic syndrome (D46.9) - myeloproliferative syndrome (D47.1) - non-Hodgkin lymphoma (C82-C85) - plasma cell myeloma (C90.0-) - polycythemia vera (D45)