T59.5X1D
T59.5X1D: Toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), subsequent encounter
Billable / specific codeICD-10-CMPOA exempt
T59.5X1D is a billable, specific ICD-10-CM code for toxic effect of fluorine gas and hydrogen fluoride, accidental (unintentional), subsequent encounter. It is valid for submission on a claim.
Check T59.5X1D with the rest of the claim: free scrubber7th character "D": subsequent encounter
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 T59.5X1D
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.
Medicare coverage
T59.5X1D is named in 2 Medicare coverage policies: 2 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56612Billing and Coding: CT of the Head
- A57224Billing and Coding: Respiratory Care
Code history
Unchanged in every release from FY2024 to FY2027.