A working library of insurance appeals.
Thirty long-form guides on the federal regulations, carrier tactics, and patient rights that decide whether a denial is overturned. Reported by Mark Henderson. Edited against the Apellica editorial standards.
Start here.
What Happens to the Other 99 Percent: A Working Guide to Insurance Appeals in 2026
Fewer than 1 percent of denied claims are ever appealed. When they are, they reverse at rates the carrier never advertises. A working guide to the 2026 appeal landscape.
Every working guide.
The 60-Day Trap: A Working Guide to Medicare Advantage Appeal Deadlines, Every Step Explained
Medicare Advantage runs on a 60-day appeal clock buried on page nine of the denial letter. The five levels, the deadlines, and the auto-forward most patients do not know exists.
How to Disenroll from a Medicare Advantage Plan When Coverage Fails
Open enrollment, the Medicare Advantage Open Enrollment Period, and the Special Enrollment Periods most agents never explain. When a coverage-denial pattern justifies disenrollment and how to switch without losing Medigap underwriting protection.
ERISA Plan Documents You Are Legally Owed in 30 Days, and How to Demand Them
ERISA Section 104(b) gives every plan participant a 30-day right to the plan documents that contain the criteria the carrier used to deny you. The exact request letter, the citations that compel production, and the $110-per-day penalty courts can impose.
When to Hire an ERISA Lawyer, and When You Do Not Need One
ERISA litigation costs five figures and recovers fees only sometimes. The four fact patterns where a lawyer is the right answer, and the larger universe of cases where a structured non-attorney appeal is faster and cheaper.
The Mental Health Parity Right: How to Use the 2024 MHPAEA Final Rule to Reverse Behavioral Health Denials
The 2024 MHPAEA Final Rule changed the analytics every plan must apply to mental-health benefits. How to invoke the comparative-analysis right, what plans must produce, and the language that reverses parity-violating denials.
Mental Health Residential Treatment: How to Appeal the "Acute" vs "Subacute" Coverage Cut
Residential mental-health denials almost always cite the level-of-care distinction between acute and subacute care. The clinical evidence and parity-rule arguments that reverse the cut-off, with the deadlines that govern each plan type.
The Bariatric Surgery Appeal: How to Counter the Carrier's "Not Medically Necessary" for Weight-Loss Surgery
BMI, comorbidity, supervised diet history, and the ASMBS criteria carriers selectively quote against you. The four-part counter-letter that addresses each prong carriers cite when denying bariatric coverage.
Post-Bariatric Maintenance Coverage: Vitamin Panels, Body-Contouring, and the Appeals That Win
Carriers cover the bariatric surgery itself but routinely deny the surveillance labs, vitamin therapy, and reconstructive body-contouring that ASMBS guidelines treat as standard of care. The maintenance-phase appeal framework.
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