AHA Coding Clinic® for ICD-9 - 2006 Issue 4; VOLUMES 1 AND 2 NEW/REVISED CODES

Neoplasms of Lymphatic and Hematopoietic Tissues

Effective October 1, 2006, code 238.7, Other lymphatic and hematopoietic tissues, has been expanded to separately identify essential thrombocythemia and various myelodysplastic syndromes. Myeloproliferative disorders and myelodysplastic syndrome are now recognized as hematologic malignancies. For data consistency reasons, the ICD-9-CM will maintain these conditions with the neoplasms of uncertain behavior. Specific codes have been created to enable improved tracking. Essential thrombocythemia is a stem cell disease that leads to an overproduction of platelets (thrombocytes), sometimes with an accompanying increase in white blood cells. If untreated, essential thrombocythemia (ET) can be life threatening. In patients with ET, the blood...

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