ICD-10-CM > S00-T88 > T80-T88 > T80 > T80.8 > T80.81 T80.81 Extravasation of vesicant agent Non-Billable/Non-Specific Applicable To Infiltration of vesicant agent Codes T80.810Extravasation of vesicant antineoplastic chemotherapyT80.810A..., initial encounterT80.810D..., subsequent encounterT80.810S..., sequelaT80.818Extravasation of other vesicant agentT80.818A..., initial encounterT80.818D..., subsequent encounterT80.818S..., sequela