Algoneurodystrophy, left hand

This code describes algoneurodystrophy, also known as Complex Regional Pain Syndrome (CRPS) Type I, affecting the left hand. It is a chronic, severe, and often debilitating pain condition characterized by autonomic and motor dysfunction, trophic changes, and sensory abnormalities in the affected limb.

Use this code when documentation clearly indicates a diagnosis of algoneurodystrophy or CRPS Type I specifically localized to the patient's left hand. Supporting documentation should detail the characteristic symptoms such as severe pain, swelling, skin color/temperature changes, and limited range of motion in the left hand.

• Ensure laterality is explicitly documented as "left hand" to support this specific code.
• Distinguish from CRPS Type II (causalgia), which involves a confirmed nerve injury and is coded differently.
• Consider sequencing this code as a primary diagnosis if it is the main reason for the encounter, or as a secondary diagnosis if it is a co-morbidity impacting treatment.