ICD Code D47.3

ICD code D47.3 is essential (hemorrhagic) thrombocythemia, a rare blood disorder characterized by the overproduction of platelets, which can lead to abnormal blood clotting or bleeding.

1. Persistent elevation of platelet count, typically greater than 450,000/μL, on repeated testing

2. Bone marrow biopsy showing proliferation mainly of the megakaryocytic lineage with increased numbers of enlarged, mature megakaryocytes

3. Absence of criteria for other myeloproliferative neoplasms, such as polycythemia vera, primary myelofibrosis, chronic myeloid leukemia, or myelodysplastic syndromes

4. No evidence of reactive (secondary) thrombocytosis

5. Presence of JAK2, CALR, or MPL mutation (supportive but not required)

6. Symptoms may include microvascular disturbances (headache, dizziness, visual changes), erythromelalgia, bleeding, or thrombosis

7. Splenomegaly may be present in some cases

Relevant CPT codes that may be used to treat ICD code D47.3 include:

- 36415 (Collection of venous blood by venipuncture)

- 38220 (Diagnostic bone marrow aspiration)

- 38221 (Bone marrow biopsy)

- 96365 (Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour)

- 96413 (Chemotherapy administration, intravenous infusion technique; up to 1 hour, single or initial substance/drug)

- 96415 (Chemotherapy administration, intravenous infusion technique; each additional hour)

- 96372 (Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular)

- 85049 (Platelet, count, manual)

- 85055 (Blood count; leukocyte (WBC), manual)

- 85610 (Prothrombin time)

- 85730 (Thromboplastin time, partial (PTT); plasma or whole blood)

These CPT codes are commonly associated with the management and treatment of D47.3.

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