Corrosion of third degree of unspecified wrist, subs encntr

This code signifies a severe chemical burn, specifically a third-degree corrosion, affecting an unspecified wrist. Third-degree burns involve full-thickness destruction of the skin and underlying tissues, often appearing leathery or charred.

Apply this code when documenting follow-up care for a patient presenting with a third-degree chemical burn to the wrist, where the specific wrist (left or right) is not documented. This includes subsequent visits for wound care, debridement, or monitoring of healing.

• Ensure documentation clearly states "corrosion" and "third degree" for accurate code assignment.
• Only use this code for subsequent encounters; an initial encounter would require a different seventh character.
• If the specific wrist is known, a more precise code should be selected (e.g., T23.771D for right wrist).