u/Picklebiscuits3369

I am retired and have tricare East. I just received a bill from my doctor's office saying I owe them an amount and it's labeled as "Tricare Adjustment" because tricare didn't pay them their full billing amount. I am wondering if "Tricare Adjustment" is something my doctor's office is trying to recuperate since they are not getting enough from Tricare? But isn't this the deal they have with Tricare in the first place? I already paid my deductible during my visit, so this should not be coming back to me, correct?