All ICD10 Codes

T78.1

Non-Billable
ChapterS00–T88
Ranksubcategory
Official Description

Other adverse food reactions, not elsewhere classified

Use a more specific code (1 billable, 2 non-billable)
T78.11Other adverse food reactions due to milk and dairy productshas subcodesT78.12Other adverse food reaction due to eggshas subcodesT78.19Other adverse food reactions, not elsewhere classified
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).

Instructional Notes

Excludes1(Not coded here. Use a different code.)
  • anaphylactic reaction or shock due to adverse food reaction (T78.0-)
  • anaphylactic reaction due to food (T78.0-)
  • bacterial food borne intoxications (A05.-)
Excludes2(Not included here. Code separately if applicable.)
  • 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
  • code to identify the type of reaction, if applicable
General instructions are available for the parent sections:
View CH19 NotesView T66-T78 NotesView T78 Notes

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
T66-T78Other and unspecified effects of external causes (T66-T78)
T78Adverse effects, not elsewhere classified
T78.1Other adverse food reactions, not elsewhere classifiedNot billable
T78.11Other adverse food reactions due to milk and dairy productsSubcodes
T78.12Other adverse food reaction due to eggsSubcodes
T78.19Other adverse food reactions, not elsewhere classifiedBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to T78.1:

categoryT78
Adverse effects, not elsewhere classified
View context instructions
blockT66-T78
Other and unspecified effects of external causes (T66-T78)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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