T28.7Corrosion of other parts of alimentary tract

T28.7 is the ICD-10-CM diagnosis code for corrosion of other parts of alimentary tract. It belongs to category T28 (burn and corrosion of other internal organs), block T26-T28 (burns and corrosions confined to eye and internal organs) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within T28, choose T28.7 (Corrosion of other parts of alimentary tract) only when documentation doesn't support a more specific option: 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 mouth and pharynx (T28.5), corrosion of esophagus (T28.6), 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.

Code first: (T51-T65) to identify chemical and intent.

Use an additional code for: external cause code to identify the source and intent of the burn (X00-X19, X75-X77, X96-X98) and external cause code to identify place (Y92).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.