Tricare Car Warranty Ontario Tricare Bill Question...?

Tricare bill question...? - tricare car warranty ontario

So I made a statement in the mail today TRICARE, if I go to the hospital after my car accident.
A total of 27,055 billedsays. The amount allocated triicare says 7177th
and wrote pateint responsiablity: 0.00

So, if I have no money and in the TRICARE pays only 7000 .. 27,000 Where's the other 20,000 come from?
TRICARE is now closed, but tommrow in callin ... but I wanted to see if any of you guys know answers.thanks!