T21.55⚠ Requires 7th Character

Corrosion of first degree of buttock

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T21

This code is not valid for billing without a 7th character. Append one of the following to T21.55:

Ainitial encounterT21.55XADsubsequent encounterT21.55XDSsequelaT21.55XS

Inclusion Terms

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

These clinical terms, synonyms, and manifestations all map to T21.55 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), buttock (s), first degree

Code Hierarchy

┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T20-T25Burns and corrosions of external body surface, specified by site (T20-T25)├T21Burn and corrosion of trunk
└T21.55Corrosion of first degree of buttock

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