Injury of nerves at shldr/up arm, unsp arm, sequela

This code signifies a long-term or residual effect from a past injury to a nerve in the shoulder or upper arm, excluding the brachial plexus. The specific nerve affected is not identified, and the laterality of the arm is also unspecified. This indicates a persistent neurological deficit resulting from a previous traumatic event.

This code is appropriate when documenting a chronic condition or complication directly attributable to an old injury of an unspecified nerve in the shoulder or upper arm region. Examples include persistent weakness, numbness, or pain in the arm that has been present for an extended period following the initial trauma. It should be used when the acute phase of the injury has passed and the patient is experiencing ongoing sequelae.

• Always ensure documentation clearly links the current neurological deficit to a past injury.
• Only use this code when the specific nerve and arm laterality are truly unknown or not documented.
• Pair with an external cause code (V00-Y99) if the original cause of the injury is still relevant and documented.