X34Earthquake

X34 is the ICD-10-CM diagnosis code for earthquake. It belongs to block X30-X39 (exposure to forces of nature) 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.

To report this condition, pick the subcode that matches the documentation: X34.XXXA (initial encounter), X34.XXXD (subsequent encounter) and X34.XXXS (sequela).

The conditions in its Excludes2 note aren't part of X34, but may be coded alongside it if the patient has both: tidal wave (tsunami) due to earthquake (X37.41).

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