Algoneurodystrophy, left shoulder

This code describes algoneurodystrophy, also known as Complex Regional Pain Syndrome (CRPS) Type I, specifically affecting the left shoulder. It is a chronic pain condition characterized by severe pain, swelling, changes in skin temperature and color, and limited range of motion in the affected limb, often developing after an injury or surgery.

Use this code when documentation clearly indicates a diagnosis of algoneurodystrophy or CRPS Type I localized to the patient's left shoulder. Supporting documentation should detail the characteristic symptoms such as allodynia, hyperalgesia, edema, sudomotor dysfunction, or trophic changes in the left shoulder region.

• Ensure the documentation specifies "Type I" if CRPS is used, as Type II has a different code.
• Verify the laterality; this code is specific to the left shoulder.
• Look for associated injuries or conditions that may have precipitated the algoneurodystrophy and code them accordingly.