What is a PLB adjustment?
The PLB segment of an 835 holds money that isn't tied to a single claim line: recoupments, interest, forwarding balances and other provider-level adjustments. It's why a payment can differ from the sum of its claims.
BPR*I*1512.30*C*ACH*CCP*…*20260327~The payment: $1,512.30.CLP*…Claims on this remittance total $1,840.00 paid.PLB*1512345678*20261231*WO:2026011500231*350~WO, overpayment recovery: $350.00 taken back for an earlier claim, payer claim 2026011500231.PLB*1512345678*20261231*L6*-22.30~L6, interest owed: $22.30 added for late payment. Negative amounts increase the payment.Claim-level adjustments explain the difference between billed and paid on each claim. Some money moves at the provider level instead: the payer takes back an old overpayment, adds interest, or carries a balance from one remittance to the next. That’s what PLB is for.
Common PLB codes
- WO, overpayment recovery: a recoupment of money paid on an earlier claim, usually with its claim number.
- FB, forwarding balance: an amount carried to or from another remittance.
- L6, interest owed: prompt-pay interest added to the payment.
- 72, authorized return: a refund the provider sent, applied.
- CS, adjustment; OB, offset for an affiliated provider; J1, nonreimbursable.
Why PLBs cause trouble
A recoupment taken from today’s payment refers to a claim from months ago, often for a different patient. If it’s posted to today’s claims, two patient accounts end up wrong. Every PLB needs to be posted against the claim it refers to.
Run your revenue cycle as workflows.
We are working with a small group of billing and operations teams to shape worklist. Tell us where your work gets stuck, and we'll show you how it would run.