T27.5⚠ Requires 7th Character

Corrosion involving larynx and trachea with lung

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T27

This code is not valid for billing without a 7th character. Append one of the following to T27.5:

Ainitial encounterT27.5XXADsubsequent encounterT27.5XXDSsequelaT27.5XXS

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

These clinical terms, synonyms, and manifestations all map to T27.5 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), larynx, with lungCorrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), lung (with larynx and trachea)Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), trachea, with lung

Code Hierarchy

┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T26-T28Burns and corrosions confined to eye and internal organs (T26-T28)├T27Burn and corrosion of respiratory tract
└T27.5Corrosion involving larynx and trachea with lung

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