D47.3 Essential (hemorrhagic) thrombocythemia

Billable ICD-10-CM code, FY2026.

Applicable to

• Essential thrombocytosis
• Idiopathic hemorrhagic thrombocythemia
• Primary thrombocytosis

Excludes2 (not included here)

• reactive thrombocytosis (D75.838)
• secondary thrombocytosis (D75.838)
• thrombocythemia NOS (D75.839)
• thrombocytosis NOS (D75.839)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 23 — Prostate, Breast, and Other Cancers and Tumors
• CMS-HCC V22: HCC 48 — Coagulation Defects and Other Specified Hematological Disorders
• RxHCC V08: HCC 21 — Lymphomas and Other Hematologic Cancers
• ESRD V24: HCC 48

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 238.71 Essential thrombocythemia (approximate)

Code annotations containing back-references to D47.3

Back-references to D47.3

• Code Also: D47.02 Systemic mastocytosis ("essential thrombocytosis (D47.3)")
• Type 1 Excludes: D69 Purpura and other hemorrhagic conditions ("essential (hemorrhagic) thrombocythemia (D47.3)")
• Type 1 Excludes: D69 Purpura and other hemorrhagic conditions ("hemorrhagic thrombocythemia (D47.3)")
• Type 2 Excludes: D75.83 Thrombocytosis ("essential thrombocythemia (D47.3)")
• Code Also: I27.29 Other secondary pulmonary hypertension ("essential thrombocythemia (D47.3)")

Diagnosis Index entries for D47.3

• Thrombocythemia (hemorrhagic) › essential
• Thrombocythemia (hemorrhagic) › idiopathic
• Thrombocythemia (hemorrhagic) › primary
• Thrombocytosis › essential
• Thrombocytosis › idiopathic
• Thrombocytosis › primary

Nearby codes

• 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 (this code)
• D47.4 Osteomyelofibrosis
• D47.Z Other specified neoplasms of uncertain behavior of lymphoid, hematopoietic and related tissue
• 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