According to Philhealth Advisory No. 01-02-2010, there are cases of underdeduction by hospitals or doctors, so always keep your official statement of account or billing statement and receipts, so you can reimburse your underdeduction.
Underdeduction happens when the amount deducted from your bill is less than the amount paid by Philhealth to your hospital or doctor, as shown in the Benefit Payment Notice sent by Philhealth to you.
What do you do if there’s underdeduction?
Present your BPN, your statement of account and official receipt to your hospital and claim the difference.