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

This code indicates a documented injury to an unspecified nerve in the left shoulder or upper arm region, occurring during a subsequent encounter for care. This implies the patient is receiving follow-up treatment or evaluation for an initial nerve injury that was not specifically identified as a named nerve.

Use this code when a patient presents for ongoing management, such as physical therapy, medication adjustments, or re-evaluation, following an initial injury to an unspecified nerve in their left shoulder or upper arm. This is appropriate when the specific nerve involved remains undiagnosed or unrecorded in the medical record.

• Ensure the documentation clearly states "left arm" and "subsequent encounter" for this specific code.
• Avoid using this code if a more specific nerve injury (e.g., ulnar nerve, radial nerve) is identified and documented.
• Always review the entire medical record to confirm the encounter type (initial, subsequent, sequela) to select the correct seventh character.