Breakdown of carotid arterial graft (bypass), subs

This code signifies a mechanical failure or malfunction of a carotid arterial graft that has been previously implanted. It indicates a structural issue with the graft itself, rather than a biological complication like infection or thrombosis.

Apply this code when documentation specifies a mechanical breakdown, such as a tear, rupture, or disconnection, of a carotid bypass graft during a subsequent encounter for care. This is appropriate for follow-up visits, readmissions, or ongoing treatment related to the graft's structural integrity.

• Ensure the documentation explicitly states "mechanical breakdown" or a similar structural failure of the graft.
• Verify that the encounter is "subsequent," meaning it's not the initial treatment for the graft failure.
• Distinguish from other graft complications like infection (T82.7) or thrombosis (T82.8) which have different codes.