ICD-10-CM > S00-T88 > T36-T50 > T50 > T50.A > T50.A1 T50.A1 Poisoning by, adverse effect of and underdosing of pertussis vaccine, including combinations with a pertussis component Non-Billable/Non-Specific Codes T50.A11Poisoning by pertussis vaccine, including combinations with a pertussis component, accidental (unintentional)T50.A11A..., initial encounterT50.A11D..., subsequent encounterT50.A11S..., sequelaT50.A12Poisoning by pertussis vaccine, including combinations with a pertussis component, intentional self-harmT50.A12A..., initial encounterT50.A12D..., subsequent encounterT50.A12S..., sequelaT50.A13Poisoning by pertussis vaccine, including combinations with a pertussis component, assaultT50.A13A..., initial encounterT50.A13D..., subsequent encounterT50.A13S..., sequelaT50.A14Poisoning by pertussis vaccine, including combinations with a pertussis component, undeterminedT50.A14A..., initial encounterT50.A14D..., subsequent encounterT50.A14S..., sequelaT50.A15Adverse effect of pertussis vaccine, including combinations with a pertussis componentT50.A15A..., initial encounterT50.A15D..., subsequent encounterT50.A15S..., sequelaT50.A16Underdosing of pertussis vaccine, including combinations with a pertussis componentT50.A16A..., initial encounterT50.A16D..., subsequent encounterT50.A16S..., sequela