Exceptions to the one-year claims filing deadline (previous item) apply if one or more of the following situations occur:
The beneficiary was Tricare-eligible at the time of service, but the Defense Enrollment and Eligibility Reporting System did not reflect the eligibility until after the filing limit;
Retroactive preauthorization was received after the filing limit expired;
Tricare Management Activity or the regional contractor made an administrative error;
A legal guardian responsible for managing the affairs of a mentally incompetent patient or a patient unable to communicate was appointed after the filing date was reached;
The provider submitted the claim as a Tricare-participating provider after changing from a non-participating provider;
The patient submitted a claim to their other health insurance underwriter in a timely fashion and the insurance plan was responsible for a delay beyond the one-year filing date; or
Medicare accepts Tricare for Life claims as timely.