T65.91XA
T65.91XA: Toxic effect of unspecified substance, accidental (unintentional), initial encounter
Billable / specific codeICD-10-CM
T65.91XA is a billable, specific ICD-10-CM code for toxic effect of unspecified substance, accidental (unintentional), initial encounter. It is valid for submission on a claim.
Check T65.91XA with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to each code from category T65
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Poisoning NOS
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T65.91XA is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56612Billing and Coding: CT of the Head
Code history
Unchanged in every release from FY2024 to FY2027.