Y27.9Contact with unspecified hot objects, undetermined intent

Y27.9 is the ICD-10-CM diagnosis code for contact with unspecified hot objects, undetermined intent. It belongs to category Y27 (contact with steam, hot vapors and hot objects, undetermined intent), block Y21-Y33 (event of undetermined intent) and chapter 20 (external causes of morbidity). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within Y27, choose Y27.9 (unspecified hot objects, undetermined intent) only when documentation doesn't support a more specific option: steam and hot vapors, undetermined intent (Y27.0), hot tap water, undetermined intent (Y27.1), hot fluids, undetermined intent (Y27.2), hot household appliance, undetermined intent (Y27.3) and other hot objects, undetermined intent (Y27.8).

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.

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