Extravasation of vesicant antineoplastic chemotherapy, subs

This code signifies a complication arising from the leakage of a vesicant antineoplastic chemotherapy drug from a vein or catheter into the surrounding tissue, occurring during a follow-up visit. Vesicants are agents that can cause blistering, tissue necrosis, and severe damage if extravasated. This specific code is for the management of such an event after the initial treatment.

Use this code when a patient presents for follow-up care, assessment, or treatment of tissue damage (e.g., pain, swelling, blistering, necrosis) resulting from a vesicant chemotherapy extravasation that occurred previously. This applies to subsequent encounters for managing the ongoing effects or complications of the extravasation.

• Always sequence this code after the primary diagnosis for which the chemotherapy was administered.
• Ensure documentation clearly indicates that the extravasation involved a vesicant antineoplastic agent and that this is not the initial encounter for the event.
• Consider additional codes for specific manifestations of the extravasation, such as tissue necrosis (e.g., L89.-) or infection (e.g., T80.21XA).