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ICD-10-CM 2027

ICD-10 code for Foodstuffs effect

T78.19

Other adverse food reactions, not elsewhere classified

Header — needs a more specific code

From the official ICD-10-CM alphabetic index entry “Effect, adverse › foodstuffs”. Page updated September 29, 2026.

About coding Foodstuffs effect

The ICD-10-CM code for Foodstuffs effect is T78.19 (Other adverse food reactions, not elsewhere classified).

Within T78.1 (other adverse food reactions, not elsewhere classified), T78.19 is specifically for other adverse food reactions, not elsewhere classified. Related codes cover reactions due to milk and dairy products (T78.11) and reaction due to eggs (T78.12).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It was added in FY2026, effective October 1, 2025.

More specific Foodstuffs effect codes (official index)

  • allergic reaction
  • causing anaphylaxis
  • noxious

Common questions about Foodstuffs effect ICD-10 codes

What is the ICD-10 code for Foodstuffs effect?

T78.19 — Other adverse food reactions, not elsewhere classified (a header code; report a more specific subcode).

Is T78.19 billable?

No. T78.19 is a header code. Report one of its more specific subcodes instead.