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T78.12

⚠ Non-billable (Header)

Other adverse food reaction due to eggs

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited from T78.1

Rules from parent category T78.1: Other adverse food reactions, not elsewhere classified

  • • anaphylactic reaction or shock due to adverse food reaction (T78.0-)
  • • anaphylactic reaction due to food (T78.0-)
  • • bacterial food borne intoxications (A05.-)

⚠️ Excludes2

inherited from T78.1

Rules from parent category T78.1: Other adverse food reactions, not elsewhere classified

  • • 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)

📋 Code Instructions

from T78.1
  • • code to identify the type of reaction, if applicable

Child Codes (3)

T78.120Other adverse food reaction due to egg with tolerance to baked eggT78.121Other adverse food reaction due to egg with reactivity to baked eggT78.129Other adverse food reaction due to egg with baked egg tolerance/reactivity, unspecified

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Code Information

CodeT78.12
BillableNo — Header code
ParentT78.1
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes13 rule(s)
Excludes26 note(s)
Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)