ICD-10-CM > S00-T88 > T51-T65 > T65 > T65.2 > T65.22 > T65.221 T65.221 Toxic effect of tobacco cigarettes, accidental (unintentional) Non-Billable/Non-Specific Applicable To Toxic effect of tobacco cigarettes NOS Codes T65.221A..., initial encounterT65.221D..., subsequent encounterT65.221S..., sequela