T78.05XA
T78.05XA: Anaphylactic reaction due to tree nuts and seeds, initial encounter
Billable / specific codeICD-10-CM
T78.05XA is a billable, specific ICD-10-CM code for anaphylactic reaction due to tree nuts and seeds, initial encounter. It is valid for submission on a claim.
Check T78.05XA 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 T78
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes2: not included here, but may coexist
The excluded condition is not part of this code, but a patient can have both. You may code both.
- anaphylactic reaction due to peanuts (T78.01)
Other codes that can never be billed with T78.05XA
Their own Excludes1 notes name this code, so the conflict is not listed above.
- T75Other and unspecified effects of other external causes
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Medicare coverage
T78.05XA is named in 17 Medicare coverage policies: 17 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56558Billing and Coding: Allergy Testing
- A56612Billing and Coding: CT of the Head
- A56844Billing and Coding: RAST Type Tests
- A57043Billing and Coding: RAST Type Tests
Code history
Unchanged in every release from FY2024 to FY2027.