OA-P12: Workers' Compensation Jurisdictional Fee Schedule Adjustment

What Does OA-P12 Mean?

OA-P12 is uncommon but may appear in coordination-of-benefits situations where the fee schedule adjustment is informational and the balance should be evaluated by another payer.

CARC P12 indicates that the workers' compensation payer has adjusted the claim payment to match the fee schedule mandated by the jurisdiction where the injury occurred. Unlike P5 (which applies to P&C claims without a legislated fee cap), P12 specifically references a legislated, jurisdictional WC fee schedule. This code is exclusive to workers' compensation claims.

Workers' compensation fee schedules are set by each state or jurisdiction and dictate the maximum amount a provider can be paid for a given procedure code. These fee schedules are typically based on the Medicare RBRVS system but with jurisdiction-specific conversion factors, ground rules, and modifiers. P12 adjustments are routine — they simply reflect the difference between the provider's billed charges and the jurisdictional maximum.

The key question for the provider is whether the payer applied the correct fee schedule. Mistakes happen: the payer may have used the wrong jurisdiction's fee schedule (especially for multi-state employers), applied an incorrect conversion factor, or mapped the procedure code to the wrong fee schedule amount. Providers who treat WC patients in multiple jurisdictions need to maintain current copies of each state's WC fee schedule and verify that P12 adjustments match the published rates.

How to Resolve

Verify the fee schedule amount is correct, accept the adjustment if accurate, or dispute if the payer used the wrong schedule or rate.

1. Identify the next payer Determine if there is a secondary payer that should receive the adjusted balance.
2. Submit to the secondary payer File the claim with the secondary payer including the primary ERA with the OA-P12 adjustment.
3. Process the final result Apply the secondary payer's adjudication and post any remaining balance accordingly.

How to Prevent OA-P12

• Collect all coverage details at registration to support proper claim sequencing
• Verify the WC fee schedule jurisdiction before billing

Also Filed As

The same CARC P12 may appear with different Group Codes:

Related Denial Codes