T78.49⚠ Requires 7th Character

Other allergy

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T78

This code is not valid for billing without a 7th character. Append one of the following to T78.49:

Ainitial encounterT78.49XADsubsequent encounterT78.49XDSsequelaT78.49XS

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to T78.49 in the official ICD-10-CM Alphabetic Index.

Allergy, allergic (reaction) (to), specific NECArthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute), in (due to), hypersensitivity reaction NEC

Code Hierarchy

┌19Injury, 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
└T78.49Other allergy

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