ICD-10-CM 2027
ICD-10 code for tonsil s corrosion
From the official ICD-10-CM alphabetic index entry “Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal) › tonsil (s)”. Page updated September 29, 2026.
About coding tonsil s corrosion
The ICD-10-CM code for tonsil s corrosion is T28.5 (Corrosion of mouth and pharynx).
Within T28 (burn and corrosion of other internal organs), T28.5 is specifically for corrosion of mouth and pharynx. Related codes cover burn of mouth and pharynx (T28.0), burn of esophagus (T28.1), burn of other parts of alimentary tract (T28.2), burn of internal genitourinary organs (T28.3), burns of other and unspecified internal organs (T28.4), corrosion of esophagus (T28.6), corrosion of other parts of alimentary tract (T28.7), corrosion of internal genitourinary organs (T28.8) and 1 more.
Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.