T32.2Corrosions involving 20-29% of body surface

T32.2 is the ICD-10-CM diagnosis code for Corrosions involving 20-29% of body surface. It belongs to category T32 (Corrosions classified according to extent of body surface involved), block T30-T32 (burns and corrosions of multiple and unspecified body regions) 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 T32 (Corrosions classified according to extent of body surface involved), T32.2 is specifically for Corrosions involving 20-29% of body surface. Related codes cover less than 10% of body surface (T32.0), 10-19% of body surface (T32.1), 30-39% of body surface (T32.3), 40-49% of body surface (T32.4), 50-59% of body surface (T32.5), 60-69% of body surface (T32.6), 70-79% of body surface (T32.7), 80-89% of body surface (T32.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: T32.20 (with 0% to 9% third degree corrosion), T32.21 (with 10-19% third degree corrosion) and T32.22 (with 20-29% third degree corrosion).

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