Inj oth blood vessels at shldr/up arm, left arm, sequela

This code signifies a long-term complication or late effect resulting from an injury to a blood vessel in the left shoulder or upper arm, excluding the main arteries and veins (e.g., axillary, brachial). This could involve damage to smaller, named or unnamed blood vessels that has persistent clinical manifestations.

Apply this code when documenting a sequela, such as chronic pain, impaired circulation, or nerve damage, that is directly attributable to a past injury of a specified, non-major blood vessel in the left shoulder or upper arm. This is appropriate for conditions that are no longer acute but are ongoing consequences of the initial trauma.

• Always use this code as a secondary diagnosis, following the code for the specific sequela (e.g., chronic pain, circulatory insufficiency).
• Ensure documentation clearly links the current condition to a previous injury of a specified, non-major blood vessel in the left upper extremity.
• Verify that the injury is indeed a "sequela" (S) and not an acute injury.