Myeloproliferative disorders causing abnormal platelet production (thrombocythemia) or bone marrow scarring (myelofibrosis). Thrombocythemia increases clotting and bleeding risk. Myelofibrosis causes anemia, splenomegaly, and constitutional symptoms. Both can progress to acute leukemia. Symptoms include fatigue, bleeding, thrombosis, night sweats, and bone pain.
Requiring continuous myelosuppressive therapy, OR for 6 months following stem cell transplant, chemotherapy, or interferon treatment, then re-evaluate
Requiring continuous or intermittent myelosuppressive therapy/chemotherapy/interferon to maintain platelet count <500 × 10⁹/L
Requiring continuous or intermittent myelosuppressive therapy/chemotherapy/interferon to maintain platelet count 200,000-400,000 or WBC 4,000-10,000
Asymptomatic
Medical Evidence
Current diagnosis from a qualified healthcare provider, medical records documenting symptoms and treatment history
Service Connection
Evidence linking your condition to military service (service treatment records, incident reports, or nexus letter)
Personal Statement
Your detailed account of how essential thrombocythemia and primary myelofibrosis affects your daily life and when symptoms began
Lay Evidence
Buddy letters from fellow service members or family who can corroborate your symptoms
During your Compensation & Pension exam for essential thrombocythemia and primary myelofibrosis, examiners will assess your symptoms against the rating criteria above.
Be specific: Describe your worst day, not your average day
Document everything: Bring copies of all medical records and evidence
Functional impact: Explain how symptoms affect work, sleep, and daily activities
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