Once you generate the claims and bill the claims out, SilkOne maintains the claims' information down, until those are paid. To follow- up on the unpaid claims, you must go to billing > reports > claims aging report. The columns represent the no. of days (remember, the moment a claim is generated, the counter starts, hence it's important to bill out the claims, the same say you generate them).
Once you post the ins. payments against the claims, the claims will be off the aging report.