Immersion hand, left hand, subsequent encounter

This code signifies a non-freezing cold injury affecting the left hand, specifically in a subsequent encounter for treatment or follow-up. It indicates damage to tissues caused by prolonged exposure to cold and wet conditions, without actual ice crystal formation within the cells. This type of injury can lead to nerve damage, pain, swelling, and changes in skin sensation.

Apply this code when documenting ongoing care for a patient previously diagnosed with immersion injury of the left hand. This includes follow-up appointments for wound care, pain management, physical therapy, or monitoring for complications like neuropathy or chronic pain. It is appropriate for any encounter after the initial treatment of the immersion hand injury.

• Ensure documentation clearly specifies "left hand" and indicates a "subsequent encounter."
• Do not use for frostbite; immersion injury is distinct from freezing cold injuries.
• Pair with external cause codes (V00-Y99) to describe the circumstances of the injury, if applicable and known.