How do I resolve a CO-59 denial?

Review NCCI edits for the billed procedure combination Determine if a modifier is applicable to bypass the bundling edit (e.g., -59, XE, XS, XP, XU) See full resolution steps at tryarceum.com.

Can I appeal a CO-59 denial?

Yes. Most CO-59 denials can be appealed within 60-180 days depending on payer. Appeals are appropriate if procedures were distinct and separate, performed through different incisions or anatomic sites, or if incorrect modifiers were applied or missing. Use our free tool to generate an appeal letter.

CARC Code

59

🟡 Soft Denial

Multiple or Concurrent Procedure Adjustment

The claim was adjusted because multiple procedures were performed during the same session, and payer rules reduce payment for additional procedures. This commonly affects surgeries, imaging studies, or anesthesia billed together.

coding

Resolution: 82%Medium difficulty7-14 days avg

How to resolve this denial

Which payer denied this claim?

Accept reduction; verify multiple surgery fee schedule and document accordingly

1
Review NCCI edits for the billed procedure combination
2
Determine if a modifier is applicable to bypass the bundling edit (e.g., -59, XE, XS, XP, XU)
3
Verify the procedures were performed independently and at separate sites/times
4
If modifier is appropriate, resubmit with the correct modifier and documentation
5
If bundled correctly, accept the reduction and adjust the claim balance

Resolve this denial →

▶✓ Pre-action checklist — verify before contacting the payer

Review the full remittance advice (ERA/EOB) for additional RARC codes that explain the denial.
Verify the claim was submitted with correct patient eligibility and benefit information.
Check if this denial applies to a specific line item or the entire claim.

▶More about CO-59 — stats, related codes, appeal template

82%

Recovery Rate

7-14 days

Avg. Resolution

Medium

Difficulty

Common

Frequency

Payer-Specific Notes

How major payers handle CARC 59 by specialty.

UnitedHealthcare

Review UHC's online claim status tool for additional detail on this adjustment.

Appeal Letter Template

Generic appeal template for CARC 59 denials.

We are submitting a formal appeal for claim [CLAIM_NUMBER] for patient [PATIENT_NAME], date of service [DOS]. This claim was denied/adjusted with CARC 59 indicating: "Processed based on multiple surgery rules or concurrent anesthesia rules.." We have reviewed the claim and are providing the attached documentation to support reconsideration. [SUPPORTING_DOCUMENTATION]. Please reconsider payment per the terms of our contract.

Generate a personalized appeal letter →

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