Extravasation of vesicant antineoplastic chemotherapy, init

This code describes the accidental leakage of a vesicant antineoplastic chemotherapy drug from a vein or central line into the surrounding subcutaneous tissue during its initial administration. Vesicants are agents that can cause blistering, tissue necrosis, and severe damage if extravasated. This event signifies the first instance of such an extravasation.

Apply this code when a patient receiving chemotherapy experiences an extravasation of a known vesicant antineoplastic agent, and this is the initial encounter for the management of this specific complication. This would typically be documented in the immediate aftermath of the event, during the assessment and initiation of treatment for the extravasation.

• Ensure documentation clearly specifies a "vesicant" antineoplastic agent and not merely an irritant.
• The "A" seventh character indicates an initial encounter, meaning the patient is actively receiving treatment for the extravasation.
• Code also any associated complications, such as infection or tissue necrosis, if present and documented.