CO-119 Denial Code: Benefit Maximum Reached
CO-119 means the patient has reached the maximum benefit for the period. Learn how to track benefit limits and communicate with patients about.
What CO-119 Means and How to Resolve It
Benefit maximum for this time period or occurrence has been reached. Patient has exhausted their plan's benefit maximum for the service type (e.g., physical therapy visit limit, mental health session limit, or annual visit cap).
- Notify the patient that their benefit maximum has been reached and they are responsible for the balance.
- Check if a secondary plan is available before billing the patient.
- Track benefit accumulation (deductible, OOP max, visit limits) for high-utilization patients throughout the plan year.
- Warn patients before limits are reached.
Source: X12.org Official CARC Registry
CO-119 in Detail
What does CO-119 cover in detail?
CO-119 means the patient has reached their maximum benefit for the period, a coverage limit that applies to the billed service and cannot be appealed.
The resolution is patient billing for the remaining balance through your denial management workflow. See the full denial codes reference for related CARC codes.
How to Handle CO-119 Denials
How to Handle CO-119 Denials?
Identify the Root Cause
Review the claim submission to find the specific reason. Check the modifier-procedure combination and payer-specific coding requirements.
Gather Documentation
Collect the clinical documentation, EOB, and any payer communication needed to support a corrected claim or appeal.
Correct and Resubmit
Make the appropriate corrections: update codes, modifiers, or attach documentation, then resubmit within the payer's timely filing window.
Track and Prevent
Log this denial type in your denial tracking system and implement a front-end check to prevent the same issue on future claims.
Appealing a CO-119 Denial
How do I appeal a CO-119 Denial?
Corrected Claim or Appeal
These are different routes and choosing wrong costs time. If the denial was caused by something fixable on your side, a wrong modifier, a missing authorization number, or a transposed code, submit a corrected claim. It is faster and does not consume an appeal level. File a formal appeal when the original claim was correct and you believe the payer applied its policy incorrectly.
What to Submit
Include the remittance advice showing the denial, the claim as originally submitted, the clinical documentation that supports medical necessity, and a short cover letter that cites the payer's own coverage policy. Take the filing deadline from the remittance advice or determination letter for that specific claim rather than a general rule, since it differs by payer and by appeal level.
Medicare Appeal Levels
Original Medicare fee-for-service appeals move through five levels, and each one must be exhausted before the next:
- 1Redetermination by the Medicare Administrative Contractor (MAC)
- 2Reconsideration by a Qualified Independent Contractor (QIC)
- 3Decision by the Office of Medicare Hearings and Appeals (OMHA)
- 4Review by the Medicare Appeals Council
- 5Judicial review in federal district court
Source: CMS, Medicare Fee-for-Service Appeals
CO-119, PR-119, PI-119: Why the Group Code Matters
The number 119 always carries the same reason for the adjustment. The two-letter group code in front of it decides who is left owing the balance, which is why the same denial reason can arrive as CO-119 on one remittance and PR-119 on another.
Contractual Obligation. The provider absorbs the amount under the payer contract and cannot bill the patient for it.
Patient Responsibility. The balance moves to the patient and may be billed, subject to the payer agreement.
Payer Initiated Reduction. The payer reduced payment on its own initiative, not under a contractual term.
Other Adjustment. Used when neither contractual obligation nor patient responsibility applies.
Group code definitions follow the X12 claim adjustment structure.
CO-119 Denial Code Reference
| Field | Details |
|---|---|
| CARC Code | CO-119 |
| Code Group | Contractual Obligation (CO) |
| Official Description | Benefit maximum for this time period or occurrence has been reached. |
| Common Cause | Patient has exhausted their plan's benefit maximum for the service type (e.g., physical therapy visit limit, mental health session limit, or annual visit cap). |
| Resolution | Notify the patient that their benefit maximum has been reached and they are responsible for the balance. Check if a secondary plan is available before billing the patient. |
| Prevention | Track benefit accumulation (deductible, OOP max, visit limits) for high-utilization patients throughout the plan year. Warn patients before limits are reached. |
Source: X12.org Official CARC Registry
Related Billing Resources
CO-119, Frequently Asked Questions
Benefit maximum for this time period or occurrence has been reached.
Patient has exhausted their plan's benefit maximum for the service type (e.g., physical therapy visit limit, mental health session limit, or annual visit cap).
Notify the patient that their benefit maximum has been reached and they are responsible for the balance. Check if a secondary plan is available before billing the patient.
Track benefit accumulation (deductible, OOP max, visit limits) for high-utilization patients throughout the plan year. Warn patients before limits are reached.
Having Trouble With This Code?
Our billing specialists can help you resolve denials, improve coding accuracy, and reduce claim rejections.
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