Tricare covers dependent children to age twenty-one ... if you have a disabled child, you need to go through Tricare for the medical certification. Once you do it, the Tricare coverage will last for lifetime unless child becomes Social Security eligible for Medicare, then, it goes to Medicare and TFL.
If you also have Social Security (for disabled child) that will help with the medical records. Tricare needs to get certification from doctors or other medical facility to "prove" disability occurred before age eighteen.
Send me PM if you want to discuss this in detail ... we can exchange emails. I've already done this once with one of my kids. It's a major hassle with a ton of records and paperwork.
Do not send originals anywhere - copy everything in duplicate.
As retired AF, you have the right to an attorney (JAG) to help you with this - go to any base and ask for legal advice. The JAG officer will help direct you.
