CO-89: Professional Fees Removed from Charges

What Does CO-89 Mean?

CO-89 means the professional fee removal is a contractual adjustment. The payer's contract or reimbursement methodology does not support separate professional fee billing for this service, and the charges are removed as a provider write-off. This is common in global rate or DRG-based payment environments where professional and facility fees are bundled.

When CARC 89 appears on a remittance, the payer has removed the professional fee component from the billed charges. This is not a full claim denial — the facility or technical component may have been paid — but the separately billed professional fees were rejected or zeroed out.

The most common scenario behind CARC 89 involves hospital-based outpatient services where the provider incorrectly split the professional and technical components. If the payer's contract pays a global rate that includes both components, a separately billed professional fee claim will be stripped as duplicative. This also happens when incorrect modifiers are used — for example, billing modifier 26 (professional component) when the payer expects a global code, or omitting the modifier entirely.

CARC 89 predominantly appears with Group Code CO, making the removed professional fees a provider write-off. This is a revenue-critical denial for practices and hospitals because professional fees often represent a significant portion of the total charge. Systematic CO-89 denials for a particular payer or service line usually point to a billing configuration problem rather than a one-off coding error. Audit your professional/technical component split rules by payer and correct the root cause in your charge master or billing system.

OA-89 appears occasionally in coordination of benefits situations. In all cases, resolving CARC 89 starts with understanding whether the professional fee should have been billed separately or was properly bundled by the payer.

Common Causes

How to Resolve

Determine whether the professional fee was correctly billed as a separate claim, verify modifier usage, and either correct the billing or appeal the payer's bundling decision.

1. Confirm whether bundling is correct Review the payer contract to determine if professional fees are supposed to be included in the facility rate for this service type. If so, the CO-89 adjustment is appropriate.
2. Check modifier coding Verify that the correct modifiers (26, TC, or global) were used. An incorrect modifier can trigger the professional fee removal even when the billing split is contractually appropriate.
3. Correct billing configuration If the separate billing was incorrect, update your charge master or billing rules for this payer to prevent recurring CO-89 adjustments.
4. Appeal if appropriate If the contract supports separate professional fee billing and the payer bundled incorrectly, file an appeal with contract documentation and coding references.

Common RARC Pairings

The RARC code tells you exactly what triggered the CO-89:

How to Prevent CO-89

• Configure billing systems with payer-specific professional/technical component rules so claims are automatically submitted with the correct split
• Maintain a reference of which payers use global rates versus split billing for each service type
• Train billing staff on proper modifier 26/TC/global usage and payer-specific component billing requirements
• Implement pre-submission claim scrubbing rules that flag professional fee claims for services where the payer bundles payment
• Conduct periodic coding audits focused on professional/technical splits to catch configuration errors before they become recurring denials

General Prevention

• Configure billing systems to automatically apply the correct professional/technical component split based on payer-specific rules
• Maintain an updated reference of which payers require bundled billing versus separate professional fee billing for each service type
• Train billing staff on proper modifier usage (26, TC, global) and payer-specific component billing requirements
• Implement claim scrubbing rules that flag professional fee claims for services where the payer bundles professional fees into the facility payment
• Conduct regular coding audits focused on professional/technical component splits to catch systematic configuration errors

Also Filed As

The same CARC 89 may appear with different Group Codes:

Related Denial Codes