T42.0X
T42.0X: Poisoning by, adverse effect of and underdosing of hydantoin derivatives
Non-billable headerICD-10-CM
T42.0X is a non-billable header ICD-10-CM code for poisoning by, adverse effect of and underdosing of hydantoin derivatives. 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 T42
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2 inherited from the categories above T42.0X
Not part of this code, but both may be coded when both are present.
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T42.0X
6 child codes. Green means billable.
- T42.0X1Poisoning by hydantoin derivatives, accidental (unintentional)
- T42.0X2Poisoning by hydantoin derivatives, intentional self-harm
- T42.0X3Poisoning by hydantoin derivatives, assault
- T42.0X4Poisoning by hydantoin derivatives, undetermined
- T42.0X5Adverse effect of hydantoin derivatives
- T42.0X6Underdosing of hydantoin derivatives