835 Denial Combination
CO-241
Contractual Obligation · Claim-Level Adjustment
What This Combination Means
No authorization was obtained for this service. The member's benefit plan requires prior authorization for the billed service and none was submitted. This is distinct from CO-197 in that CO-241 is used by payers for certain categories of services (often specialty care or high-cost procedures) where the auth requirement is benefit-design-level, not just a utilization management requirement.
48%
Appeal Success
21-45 days
Avg. Resolution
Hard
Difficulty
Yes
Appealable
Step-by-Step Resolution
Steps tailored specifically to this CO-241 combination — not generic advice.
- 1
Confirm the authorization requirement by checking the patient's Summary of Benefits and Coverage (SBC) and the payer's prior auth list.
- 2
Determine if retroactive authorization is possible — contact the payer's authorization department directly.
- 3
Prepare clinical documentation supporting the medical necessity of the service.
- 4
If retroactive auth is denied, file a formal appeal with supporting clinical notes and the treating provider's letter of medical necessity.
- 5
For future patients, add this procedure to your pre-authorization checklist to prevent recurring denials.
Specialty Context
How CO-241 typically presents across different practice types.
Dental
Used by some payers for implant-supported prosthetics or orthodontic services where auth is a plan-level benefit requirement.
Medical
Common for specialty drugs (biologics, specialty injectables) administered in an office setting, and for durable medical equipment.
Behavioral Health
May appear for intensive outpatient programs (IOPs) and partial hospitalization programs (PHPs) that require auth from the MBHO.
Individual Code References
View the standalone definition for each code in this combination.
Decode every 835 combination automatically
Arceum Pro reads your ERA files and surfaces the combined interpretation + recovery steps for every denial — no manual lookups.
Join the Waitlist →