T59.5X1
T59.5X1: Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional)
Non-billable headerICD-10-CM
T59.5X1 is a non-billable header ICD-10-CM code for toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional). 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 T59
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Toxic effect of fluorine gas and hydrogen fluoride NOS
Other codes that can never be billed with T59.5X1
Their own Excludes1 notes name this code, so the conflict is not listed above.
- T71Asphyxiation
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 T59.5X1
3 child codes. Green means billable.
- T59.5X1AToxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), initial encounter
- T59.5X1DToxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), subsequent encounter
- T59.5X1SToxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), sequela