2013 ICD-9-CM Diagnosis Code 238.71
Essential thrombocythemia
- clinical syndrome characterized by repeated spontaneous hemorrhages and a remarkable increase in the number of circulating platelets.
- An increased number of thrombocytes (platelets) in the blood, without a known cause.
- A chronic myeloproliferative disorder that involves primarily the megakaryocytic lineage. It is characterized by sustained thrombocytosis in the blood, increased numbers of large, mature megakaryocytes in the bone marrow, and episodes of thrombosis and/or hemorrhage. The cause is unknown. Median survival times of 10-15 years are commonly reported. (WHO, 2001)
- ICD-9-CM 238.71 is a billable medical code that can be used to specify a diagnosis on a reimbursement claim.
Applies To
Convert 238.71 to ICD-10-CM 

ICD-9-CM Volume 2 Index entries containing back-references to 238.71: