New code ยท FY2026
Not billable: this is a header. Use one of the more specific codes below.
- New code, effective October 1, 2025 (FY2026).
Code breakdown
T78.111
- T78CategoryAdverse effects, not elsewhere classified
- 1Character 4Other adverse food reactions, not elsewhere classified
- 1Character 5Other adverse food reactions due to milk and dairy products
- 1Character 6Other adverse food reaction due to milk and dairy products with reactivity to baked milk
Coding notes
Excludes1
- Other adverse food reaction due to milk and dairy products with tolerance to baked milk (T78.110)
Excludes1 (from T78.1)
- anaphylactic reaction or shock due to adverse food reaction (T78.0-)
- anaphylactic reaction due to food (T78.0-)
- bacterial food borne intoxications (A05.-)
Excludes2 (from T78.1)
- allergic and dietetic gastroenteritis and colitis (K52.29)
- allergic rhinitis due to food (J30.5)
- dermatitis due to food in contact with skin (L23.6, L24.6, L25.4)
- dermatitis due to ingested food (L27.2)
- food protein-induced enterocolitis syndrome (K52.21)
- food protein-induced enteropathy (K52.22)
Use additional code (from T78.1)
- code to identify the type of reaction, if applicable
Excludes2 (from T78)
- complications of surgical and medical care NEC (T80-T88)
7th character (from T78)
- The appropriate 7th character is to be added to each code from category T78
7th characters (category T78)
- A initial encounter
- D subsequent encounter
- S sequela
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ICD-10-CM codes and descriptions are from the CMS and NCHS code files. Coverage is from the CMS Medicare Coverage Database billing and coding articles.