Unsp inj unsp blood vess at ank/ft level, left leg, sequela

This code signifies a long-term or late effect of an unspecified injury to an unspecified blood vessel in the left ankle or foot. It indicates that the initial injury has healed, but the patient continues to experience residual symptoms or complications directly attributable to that past vascular trauma.

Apply this code when documentation clearly indicates a sequela (e.g., chronic pain, functional impairment, or other lasting issues) resulting from a previous, unspecific injury to a blood vessel in the left ankle or foot. This is appropriate when the specific type of blood vessel or the exact nature of the original injury is not documented.

• Requires a seventh character "S" to indicate sequela, meaning the initial injury has resolved.
• Use when the specific blood vessel (artery, vein, capillary) and the exact nature of the injury (e.g., laceration, contusion) are not specified in the medical record.
• Always sequence the sequela code first, followed by codes for the specific residual condition(s) if applicable.