942.49 — Deep necrosis of underlying tissues [deep third degree] without mention of loss of a body part, of other and multiple sites of trunk

942.49 is an ICD-9-CM diagnosis code for deep necrosis of underlying tissues [deep third degree] without mention of loss of a body part, of other and multiple sites of trunk. ICD-9-CM was retired for U.S. claims on October 1, 2015, when ICD-10-CM took over.

The CMS General Equivalence Mappings translate it to 2 ICD-10-CM codes, such as T21.39XA (Burn of third degree of other site of trunk, initial encounter) and T21.79XA (Corrosion of third degree of other site of trunk, initial encounter). All of these are approximate matches, so review the record to pick the right one.