Extravasation of other vesicant agent, sequela

This code signifies a long-term or residual effect resulting from the accidental leakage of a vesicant (a substance causing blistering and tissue damage) into surrounding tissues, excluding chemotherapy agents. These sequelae can include chronic pain, scarring, tissue necrosis, or functional impairment that persists after the initial extravasation event.

Apply this code when documenting a patient presenting with a current condition directly attributable to a past extravasation of a non-chemotherapeutic vesicant. This includes situations where a patient is being treated for chronic pain or tissue damage that developed months or years after the initial event, such as from certain antibiotics, contrast media, or other irritant solutions.

• Always sequence this code after the code for the specific sequela (e.g., chronic pain, scar).
• Ensure documentation clearly links the current condition to a past extravasation event involving a non-chemotherapeutic vesicant.
• Do not use this code for acute extravasation events; it is specifically for the long-term consequences.