Unsp injury of blood vessels of thorax, unsp side, sequela

This code signifies a long-term complication or late effect resulting from an unspecified injury to a blood vessel within the chest, excluding the heart or great vessels. The exact nature of the blood vessel and the specific injury are not documented, nor is the side of the body affected.

This code is appropriate for reporting a sequela when the original injury to a thoracic blood vessel (other than the heart or great vessels) is no longer acute, and the specific vessel, injury type, and side are unknown or not documented. It is used when the patient presents with a residual condition directly attributable to that past, unspecified thoracic blood vessel trauma.

• Always attempt to obtain more specific documentation regarding the injured blood vessel, type of injury, and laterality before resorting to this unspecified code.
• This code should be used as a secondary diagnosis, following the code for the specific sequela (e.g., chronic pain, scar formation, vascular insufficiency).
• The 7th character "S" indicates a sequela, meaning the condition is a late effect of the original injury, not the acute injury itself.