Algoneurodystrophy, right lower leg

This code represents algoneurodystrophy, also known as Complex Regional Pain Syndrome (CRPS) Type I, affecting the right lower leg. It is a chronic pain condition characterized by severe, burning pain, swelling, and trophic changes in the affected limb, without evidence of major nerve damage.

Use this code when documentation clearly indicates a diagnosis of algoneurodystrophy or CRPS Type I specifically localized to the patient's right lower leg. Supporting documentation should detail the characteristic symptoms such as allodynia, hyperalgesia, edema, skin temperature changes, and motor dysfunction in the specified limb.

• Ensure laterality is precisely documented; this code is specific to the right lower leg.
• Distinguish from CRPS Type II (causalgia), which involves confirmed nerve injury.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter.