T78.19
T78.19: Other adverse food reactions, not elsewhere classified
Non-billable headerICD-10-CM
T78.19 is a non-billable header ICD-10-CM code for other adverse food reactions, not elsewhere classified. 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 T78
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1 inherited from the categories above T78.19
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above T78.19
Not part of this code, but both may be coded when both are present.
Written on T78.1: Other adverse food reactions, not elsewhere classified
Other codes that can never be billed with T78.19
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.
Alphabetic index entries that lead here
- Allergy, allergic›food NEC(any) (ingested)
- Effect, adverse›foodstuffs
- Syndrome›oral allergy
- Allergy, allergic›gastrointestinal›meaning other adverse food reaction not elsewhere classified
- Reaction›adverse›food NEC(any) (ingested)
Code history
Unchanged in every release from FY2024 to FY2027.
Code to one of these instead T78.19
3 child codes. Green means billable.