T78.0

ICD-10Non-billable category

Anaphylactic reaction due to food

Official ICD-10-CM descriptor (FY2026)

Anaphylactic reaction due to food

T78.0 is a category heading, not a billable code. CMS does not accept it on a claim; report one of the more specific codes beneath it.

Inclusion terms

Anaphylactic reaction due to adverse food reaction
Anaphylactic shock or reaction due to nonpoisonous foods
Anaphylactoid reaction due to food

ICD-10-CM FY2026 defines 10 codes beneath T78.0. See the ICD-10-CM index for what this site publishes.

Related codes in T78

Where this code sits

Chapter: 19. Injury, poisoning and certain other consequences of external causes (S00-T88)
Block: Other and unspecified effects of external causes (T66-T78)
Parent code: T78

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.