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D47.02

✓ Billable

Systemic mastocytosis

Neoplasms (C00-D49)

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Also Known As

Indolent systemic mastocytosisIsolated bone marrow mastocytosisSmoldering systemic mastocytosisSystemic mastocytosis, with an associated hematological non-mast cell lineage disease (SM-AHNMD)

❌ Excludes1

direct

Cannot be coded with D47.02

  • • aggressive systemic mastocytosis (C96.21)
  • • mast cell leukemia (C94.3-)

❌ Excludes1

inherited from D47.0

Rules from parent category D47.0: Mast cell neoplasms of uncertain behavior

  • • congenital cutaneous mastocytosis (Q82.2)
  • • histiocytic neoplasms of uncertain behavior (D47.Z9)
  • • malignant mast cell neoplasm (C96.2-)

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Code Information

CodeD47.02
BillableYes
ParentD47.0
CategoryNeoplasms (C00-D49)
Excludes15 rule(s)
Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)