Injury of unsp nerve at shldr/up arm, left arm, sequela

This code signifies a long-term or late effect of an injury to an unspecified nerve located in the left shoulder or upper arm region. It indicates that the initial acute nerve injury has resolved, but the patient continues to experience residual symptoms or complications directly attributable to that past injury.

Apply this code when documenting conditions such as chronic pain, weakness, numbness, or other neurological deficits in the left shoulder or upper arm that are sequelae of a previous nerve injury. This would include situations where the specific nerve involved was not identified or documented at the time of the initial injury, or if the current presentation is a general nerve-related issue from a past trauma.

• Always sequence this sequela code after the code for the specific residual condition (e.g., chronic pain, muscle weakness).
• Ensure documentation clearly links the current symptoms to a past nerve injury in the specified anatomical area.
• Do not use for acute nerve injuries; those require codes from the acute injury chapters.