<prompt> Human: Back in March and April, my wife spent almost a week in the hospital due to complications before the baby was born and then several more days leading up to the delivery. My baby stayed in the neonatal ICU for about a week as well. Based on my health coverage I knew I was going to hit my out of pocket max of around 12k. Looking at my summaries on kp.org pretty much confirms it. However, kp.org also says I have no bills to pay and I never got any bills in the mail nor follow up notices for failing to pay.Ive certainly gotten bills from Kaiser in the mail earlier this year which I easily paid online. But I havent gotten anything related to the delivery for a couple of months now. Theyve sent me tons of surveys though since my wife was in and out so much. Theyve sent a survey for every visit. Anyway, if I ignore this is it going to bite me in the butt later? Will an accountant finally notice in fifteen years and come collecting? Should I just contact Kaiser and offer to pay a bill I think should exist? Update:Thanks for all the responses. Very helpful. Just want to answer a few questions here: Had this been an ideal pregnancy, I would probably have a bill of around 2k for everything. I have a Kaiser Silver HSA 150020 plan. My 12k Out-of-pocket-max is for a family. Individual is 6k. That being said, after all the hospital visits the total cost is somewhere around 60k. Ill take that 12k OOPM. I already have 12k set aside so no worries there. Though it is annoying to see it in my bank account but never knowing if its truly there since the bill could come in any day Ill sit on this a little while longer and look into any fine print that specifies a time window in which I should be billed. If theres anything I should be doing with that 12k in cash while I wait, please let me know! Glad to hear some other folks are in similar situations and are benefitting from this conversation in someway  <response>: I had a kid with kaiser too and it took about 6 months for all the bills to finally stop randomly showing up. 