Unsp inj unsp blood vess at wrs/hnd lv of unsp arm, sequela

This code describes a long-term complication or late effect resulting from an unspecified injury to an unspecified blood vessel in the wrist or hand of an unspecified arm. It indicates that the initial injury has healed, but residual issues related to the blood vessel damage persist.

Use this code when documenting a sequela of a past, unspecified blood vessel injury to the wrist or hand, and the specific vessel or nature of the initial injury is unknown or not documented. This is appropriate for follow-up encounters addressing chronic pain, circulatory issues, or other lasting effects directly attributable to the old injury.

• Always attempt to identify the specific blood vessel injured and the nature of the initial injury for more precise coding.
• This "S" code indicates a sequela; it should be used as a secondary diagnosis following the primary condition being treated.
• Avoid using this code if the initial injury is still acute or if a more specific sequela code is available.