835 PLB provider-level adjustments: WO, L6, FB and more
The PLB segment adjusts the whole payment, not a specific claim. It's why a payer's deposit can be smaller (or larger) than the claims it paid.
The sign
On a PLB, a positive amount reduces the payment (money taken back) and a negative amount increases it (money added, such as interest). The rule is: sum of CLP04 claims paid − sum of PLB amounts = BPR02 payment.
Example
Claims paid $90.46. PLB WO (overpayment recovery) 25.00 and L6 (interest) −1.25. Payment = 90.46 − 25.00 + 1.25 = $66.71.
Common PLB reason codes
| Code | PLB summary |
|---|---|
| 50 | Late charge |
| 72 | Authorized return |
| 90 | Early payment allowance |
| WO | Overpayment recovery |
| FB | Forwarding balance |
| L6 | Interest owed |
| CS | Adjustment |
| J1 | Nonreimbursable |
| AP | Acceleration of benefits |
| B2 | Rebate |
| B3 | Recovery allowance |
| BD | Bad debt adjustment |
| BN | Bonus |
| C5 | Temporary allowance |
| CT | Capitation payment |
| CV | Capital passthru |
| CW | CRNA passthru |
| DM | Direct medical education passthru |
| E3 | Withholding |
| FC | Fund allocation |
| GO | Graduate medical education passthru |
| HM | Hemophilia clotting factor |
| IP | Incentive premium payment |
| IR | IRS withholding |
| IS | Interim settlement |
| L3 | Penalty |
| LE | Levy |
| LS | Lump sum |
| OA | Organ acquisition passthru |
| OB | Offset for affiliated providers |
| PI | Periodic interim payment |
| PL | Payment final |
| RA | Retro-activity adjustment |
| RE | Return on equity |
| SL | Student loan repayment |
| TL | Third-party liability |
| WU | Unspecified recovery |
| AH | Origination fee |
| AM | Applied to borrower's account |
The reference after the reason (for example WO:20260901ABC) usually identifies the claim or letter the recoupment relates to. Remitgrid lists every PLB under its payment and in the Excel workbook's Provider adjustments sheet.
Last reviewed 2026-10-27. Code lists and payer policies change — confirm with X12 (x12.org/codes), the payer and your clearinghouse. Not billing, coding or legal advice.