ICD-10 Code: T78.40 – Allergy, unspecified

ICD-10 code T78.40 corresponds to Allergy, unspecified. This code is classified under the chapter T78 Adverse effects, not elsewhere classified, which is part of the T07-T88: Injury, poisoning and certain other consequences of external causes category.

The parent chapter is Injury, poisoning and certain other consequences of external causes.