T50.A16 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Underdosing of pertussis vaccine, including combinations with a pertussis component.
Codes
T50.A16A
Underdosing of pertussis vaccine, including combinations with a pertussis component, initial encounter
T50.A16D
Underdosing of pertussis vaccine, including combinations with a pertussis component, subsequent encounter
T50.A16S
Underdosing of pertussis vaccine, including combinations with a pertussis component, sequela
Versions
2025
No changes
2024
No changes
2023
No changes
2022
No changes
2021
No changes
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code