Colorado Revised Statutes Title 8. Labor and Industry § 8-41-302. Scope of terms--“accident”--“injury”--“occupational disease”

(1) “Accident”, “injury”, and “occupational disease” shall not be construed to include disability or death caused by or resulting from mental or emotional stress unless it is shown by competent evidence that such mental or emotional stress is proximately caused solely by hazards to which the worker would not have been equally exposed outside the employment.

(2) “Accident”, “injury”, and “occupational disease” shall not be construed to include disability or death caused by heart attack unless it is shown by competent evidence that such heart attack was proximately caused by an unusual exertion arising out of and within the course of the employment.