Unspecified injury of blood vessel of left thumb, sequela

This code indicates a long-term or late effect resulting from an unspecified injury to a blood vessel in the left thumb. This could encompass persistent issues such as chronic pain, impaired circulation, or functional limitations directly attributable to a past vascular trauma in that digit.

Apply this code when documenting a patient presenting with residual symptoms or complications from a previous, unspecific injury to a blood vessel in their left thumb, and the initial injury itself is no longer acute. This is appropriate for follow-up encounters addressing the chronic sequelae of such an event.

• Always use a seventh character 'S' for sequela when the patient is being seen for the late effects of the injury.
• Ensure documentation clearly links the current condition to a past, unspecified blood vessel injury of the left thumb.
• Consider if a more specific blood vessel injury code (e.g., laceration, puncture) was identified at the time of the initial injury; if so, that specific sequela code would be more appropriate.