How to Appeal a CO-119 'Benefit Maximum Reached' Denial
Claim denied with CO-119 because you hit a benefit maximum or visit limit? Some limits are illegal under the ACA and parity law, and the count is often wrong. Learn how to appeal.
What does CO-119 mean?
A CO-119 denial means the benefit maximum for a time period or occurrence has been reached, for example, a cap on the number of physical therapy visits, mental health sessions, chiropractic treatments, or a dollar limit on a specific category of benefit. The insurer is asserting you have used up the allowed amount for that benefit. CO-119 is appealable both when the count is wrong and when the limit itself is improper under federal law.
Why insurers issue CO-119 denials
Plans impose benefit maximums to control costs: visit caps on therapy, annual limits on durable medical equipment, or occurrence limits on certain procedures. Two problems make CO-119 frequently appealable. First, the accumulator math is often wrong, denied, duplicated, or out-of-network visits are sometimes miscounted toward the limit. Second, some limits are illegal: the ACA prohibits annual and lifetime dollar limits on essential health benefits, and the Mental Health Parity and Addiction Equity Act prohibits applying stricter visit limits to mental health and substance use treatment than to comparable medical care.
Appeal strategy
Request a year-to-date accumulator statement showing exactly how the insurer counted toward the maximum, then verify every entry against your Explanation of Benefits records, miscounted, denied, or duplicate visits should not count. If the limit is a dollar cap on an essential health benefit, cite the ACA's prohibition on annual and lifetime dollar limits. If the limit is a visit cap on mental health or substance use care that is stricter than the cap on comparable medical care, cite the Mental Health Parity and Addiction Equity Act and request the plan's comparative analysis. If the care remains medically necessary beyond the limit, submit a continued-care or exception request with a physician letter.