AHA Coding Clinic® for ICD-9 - 2005 Issue 4; VOLUME 3 NEW/REVISED CODES

Subtalar Joint Arthroereisis

Effective October 1, 2005, a unique code (81.18), has been created to identify subtalar joint arthroereisis. Prior to this time, this procedure was captured with code 81.99, Other operations on joint structure. This code did not clearly identify the procedure. Arthroereisis is the limitation of exogenous joint motion without complete arthrodesis. It limits excessive motion at the involved joint axis. It limits excessive valgus motion at the subtalar joint and retains the varus range of motion. Arthrodesis, by contrast, prevents all motion across the joint axis by creating a surgical fusion of the joint. There are various...

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