How to handle Insurance claim Invoice in AR

Hello Experts

Can you please advise how handle below scenario in Oracle AR r12

Please advise how to meet the below reqquirement

1. Customer comes to hospital & gets the treatment done by showing his Insurance Card (Invoice will be created in AR with dummy receivable account)

Dummy Receivable Dr

Revenue Cr

2. when the Hospital claims the amount against Insurance company then the actual Invoice should be created in Receivable account

Receivable a/c DR

Dummy Receivable CR

Note:

Hospital doesn't know when they will claim amount from Insurance company.. i.e there is no specific time period when they can claim amount from Insurance company