Unsp injury of intercostal blood vessels, left side, sequela

This code indicates a long-term or late-effect complication stemming from an unspecified injury to the blood vessels located between the ribs on the left side of the body. The original injury is no longer acute, and the patient is now experiencing residual issues directly attributable to that past trauma.

Apply this code when documentation clearly links a current clinical condition to a previous, unspecified injury of the left intercostal blood vessels, and the original injury itself is no longer being treated. This is appropriate for follow-up encounters addressing chronic pain, scarring, or functional impairment resulting from the old injury.

• Ensure the medical record explicitly states the condition is a "sequela" or "late effect" of a prior injury.
• Verify the injury site is specifically the "left side" and involves "intercostal blood vessels."
• Do not use this code for acute injuries; a separate acute injury code would be appropriate in those instances.