Algoneurodystrophy, right thigh

This code signifies algoneurodystrophy, also known as Complex Regional Pain Syndrome (CRPS) Type I, affecting the right thigh. It is characterized by chronic, severe pain, swelling, changes in skin temperature and color, and functional impairment in the specified limb, typically occurring after trauma or surgery.

Use this code when documentation clearly indicates a diagnosis of algoneurodystrophy or CRPS Type I localized to the patient's right thigh. Supporting documentation should detail the characteristic symptoms, such as allodynia, hyperalgesia, edema, sudomotor changes, or trophic changes, and specify the affected body part.

• Ensure the documentation explicitly states "right thigh" to support the laterality and site specificity of this code.
• Distinguish from CRPS Type II (causalgia), which involves a confirmed nerve injury, as this code is for Type I.
• Consider sequencing this code as a primary diagnosis when it is the main reason for the encounter, or as a secondary diagnosis when it is a co-morbidity.