ICD-10 Guide

T78.4

Name: ICD-10-CM Medical Diagnosis Codes
Creator: Centers for Medicare & Medicaid Services
License: https://www.cms.gov/medicare/coding/icd10

Non-billable

Other and unspecified allergy

BILLABLE STATUSNo

IMPLEMENTATION DATEOctober 1, 2015

LAST UPDATED08/26/2025

Code Description

ICD-10 T78.4 is a used to indicate a diagnosis of other and unspecified allergy.

Key Diagnostic Point:

Other and unspecified allergy

T78.4

Code Description

Key Diagnostic Point:

Related ICD-10 Codes

T78.4

Code Description

Key Diagnostic Point:

Related ICD-10 Codes