AHA Coding Clinic® for ICD-9 - 2011 Issue 4; VOLUMES 1 & 2 NEW/REVISED CODES

Disorders due to Intrinsic Circulating Anticoagulants, Antibodies or Inhibitors

Effective October 1, 2011, code 286.5, Hemorrhagic disorder due to intrinsic circulating anticoagulants, has been expanded because the code included a number of diverse disorders which are characterized by an abnormally elevated activated partial thromboplastin time (aPTT) despite different physiology. Code 286.52, Acquired hemophilia, was created to distinguish the acquired form of hemophilia from congenital hemophilia. Acquired or secondary hemophilia is a rare bleeding disorder that occurs when patients with a previously normal hemostasis system develop antibodies that are directed against a plasma coagulation factor. While acquired hemophilia affects those with autoimmune disorders such as systemic lupus...

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