Things may have changed since I moved on from PMI, but back then consultants would submit an invoice with diagnosis, dates of treatment, treatment given and price charged.
There would be no clinical info other than the diagnosis,dates and the clinical code / name of treatment, eg biopsy, hip replacement.
The only time more clinical information would be offered and /or requested would be when the treatment was unusually difficult and / or took longer than usual.In these cases the consultant would be requesting a higher rate of pay for the additional time and effort.
The vast majority of hospitals will have an arrangement with most insurers covering the charges they can make and be reimbursed for. So just like the consultants they will submit an invoice with dates of treatment and treatment given. They hospitals will receive a flat rate to cover the treatment, unless again like the consultant they are charging more because the procedure was outside the norm in some way.
Basically very little clinical information passes between the consultant and insurer and hospital and insurer. At some point an audit is done, but a lot is done on trust - all parties have to work together and trust each other to keep the system going basically.
if your procedure /treatment has been preauthorised all the financial stuff should happen automatically behind the scenes. You may get a statement from your insurer showing you what they have paid but that’s dependent upon the insurer’s policy. You would only be contacted by the hospital or consultant if you had an excess to pay and so had to settle the outstanding amount directly with the hospital / consultant.
are you thinking the hospital and consultant have charged for different procedures ? Rare as hen’s teeth but I’m not saying it’s impossible. If this is what you’re worried about I would contact your insurer, explain the situation and ask them to investigate.
HTH