T50.A16
T50.A16 — Underdosing of pertussis vaccine, including combinations with a pertussis component
Non-billable headerICD-10-CM
T50.A16 is a non-billable header ICD-10-CM code for underdosing of pertussis vaccine, including combinations with a pertussis component. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T50
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T50.A16 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
Code to one of these instead T50.A16
3 child codes. Green means billable.
- T50.A16AUnderdosing of pertussis vaccine, including combinations with a pertussis component, initial encounter
- T50.A16DUnderdosing of pertussis vaccine, including combinations with a pertussis component, subsequent encounter
- T50.A16SUnderdosing of pertussis vaccine, including combinations with a pertussis component, sequela
Related codes at this level
Codes that share T50.A1. If T50.A16 is not quite right, the correct code is usually one of these.
- T50.A11Poisoning by pertussis vaccine, including combinations with a pertussis component, accidental (unintentional)
- T50.A12Poisoning by pertussis vaccine, including combinations with a pertussis component, intentional self-harm
- T50.A13Poisoning by pertussis vaccine, including combinations with a pertussis component, assault
- T50.A14Poisoning by pertussis vaccine, including combinations with a pertussis component, undetermined
- T50.A15Adverse effect of pertussis vaccine, including combinations with a pertussis component
Questions about T50.A16
- Is T50.A16 a billable ICD-10-CM code?
- No. T50.A16 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T50.A16 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances (T36-T50).