From 1 July 2014, trustees of an SMSF cannot provide an insured benefit in relation to a member of the fund unless the insured event is consistent with one of the following conditions of release of a member’s super benefits:
An insured event covered by a trauma insurance benefit (which covers conditions such as cancer, stroke, and heart attack) is not consistent with any of the above conditions of release.
SMSFs that provided a trauma insurance benefit to a member who joined the fund before 1 July 2014, and was covered before that date, are allowed to continue to provide that benefit to the member after that date. A member cannot change the type of trauma insurance cover they had before 1 July 2014; however, they can increase or decrease the level of their existing cover from that date.
For more info please follow ATO link here.