Breakdown (mechanical) of surgically created AV shunt, init

This code describes the mechanical failure of an arteriovenous (AV) shunt, a surgically created connection between an artery and a vein, typically used for hemodialysis access. This breakdown refers to a physical malfunction of the shunt itself, such as a disconnection, kinking, or structural collapse, rather than an infection or thrombosis. This initial encounter indicates the patient is receiving active treatment for this specific complication.

Apply this code when a patient presents with a mechanical issue affecting their AV shunt, requiring intervention or evaluation. This includes situations where the shunt is no longer functioning correctly due to a structural problem, necessitating repair or replacement. Use for the initial visit related to this specific mechanical breakdown.

• Distinguish mechanical breakdown from other AV shunt complications like infection (T82.7-) or thrombosis (T82.8-).
• Ensure "initial encounter" (A) is appropriate for the patient's first visit for this specific breakdown. Subsequent encounters would use D or S.
• Always code an external cause code if known, to describe the circumstances of the mechanical breakdown.