ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.A > T50.A1 > T50.A12 T50.A12 Poisoning by pertussis vaccine, including combinations with a pertussis component, intentional self-harm Non-Billable/Non-Specific Codes T50.A12A..., initial encounterT50.A12D..., subsequent encounterT50.A12S..., sequela