Corrosion of first degree of unspecified axilla, subs encntr

This code signifies a superficial chemical burn (corrosion) affecting the skin of an unspecified armpit, where only the outermost layer of skin is damaged. The injury is being treated or monitored after the initial encounter.

Apply this code when a patient presents for follow-up care, such as wound checks, dressing changes, or medication refills, for a first-degree chemical burn to the axilla. This is appropriate when the specific side (left or right) of the axilla was not documented at the initial encounter.

• Requires an external cause code (e.g., T51-T65) to identify the corrosive agent.
• Do not use for thermal burns; this code is specifically for chemical injuries.
• Ensure documentation clearly indicates a subsequent encounter for ongoing care.