AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2021 Issue 2; Ask the Editor

Persistent Atrial Fibrillation, Anticoagulant Therapy and Acquired versus Inherited Hypercoagulable State

A 76-year-old male with persistent atrial fibrillation (AF) on anticoagulant therapy presented for follow-up. The provider listed “Hypercoagulable state” in the diagnostic statement. However, he also noted, “No Hematological/Immunologic disorder,” in the History and Physical Exam. Code D68.59, Other primary thrombophilia, is the default code assignment for hypercoagulable state. However, code D68.59 identifies an inherited coagulation abnormality. In researching the condition, we found out that patients with AF on anticoagulant therapy might develop a secondary hypercoagulable state. How should a hypercoagulable state be coded when the provider does not indicate whether it is an acquired or inherited condition? ...

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