How to write a medical billing appeal letter
The appeal-letter hub. Anatomy of a first-level appeal, worked examples by denial family, and the regulatory citations that carry weight on Medicare Advantage.
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The library
A working library for the revenue cycle. It grows as payer behavior shifts.
Denial briefs, specialty playbooks, primers, case files, and templates, organized by what you’re trying to fix.
Type
Specialty
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FEATURED THIS MONTH
Dispatch Issue 01: Post-acute Medicare Advantage denials
The July Dispatch. The OIG report on the three largest MA plans, the CARC 50 denial brief behind the pattern, first-level appeal anatomy, and the policy alert for the next 90 days. Written for practice owners and RCM leaders who need to know what to watch and what to do next.
Dispatch
All specialties
14 min
Read Issue 01 →
Denials and appeals library
Two PDFs: a denial pattern guide and an appeal playbook library. Built from real claims, not from a textbook.
Read →Appeal templates
A starter set of appeal letter templates organized by denial pattern.
Read →CARC 96: non-covered service
The catch-all non-covered denial. Group code, RARC pairing, and the coverage-vs-policy read that tells you whether to appeal or write it off.
Read →CARC 204: not covered under the patient’s plan
The plan-specific coverage denial. When it means the service is truly excluded, when it means the payer bought the wrong policy read, and how to appeal each.
Read →CARC 97: bundled into another service
The bundling denial as it appears on the 835, decoded with the modifier logic and the appeal-versus-rebill decision tree.
Read →CARC 50: medical necessity denial
The denial behind the OIG post-acute Medicare Advantage report. Group code, RARC pairing, root causes, and the appeal path that overturns them.
Read →CARC 49: routine service not covered
A denial that needs a coverage check, not an appeal.
Read →CARC 4: modifier missing or invalid
The modifier denial that hides a coding-team workflow problem.
Read →CARC 119: benefit maximum reached
A clean denial pattern often misread as workable. The fix is upstream.
Read →CARC 16: missing or invalid information
What the denial means, why the RARC is the part that matters, where it originates upstream, and the appeal language that works.
Read →Outsourced billing, examined
A 23-page guide for practice owners who suspect something is off with their billing partner and need a clean way to prove it.
Read →Realtime Eligibility Engine: eligibility as denial prevention
The intake-side workflow that prevents the denials your back-office team is currently chasing.
Read →The revenue integrity blueprint
A 90-day operational plan for restoring revenue integrity in a practice that has lost it.
Read →Data Transformation Engine: payer-speak to operator-speak
What payer denial language actually means, with the workflow fix for each pattern.
Read →Behavioral health billing playbook
The denials, payer behaviors, and workflow patterns specific to behavioral health practices.
Read →Dermatology billing playbook
Modifier 25, biopsy bundling, MOHS rules, and the rest of derm-specific revenue cycle nuance.
Read →Physical therapy billing playbook
Cap rules, PTA modifiers, GP/GO/GN coding, and the workflow design that prevents downstream denials.
Read →Ambulatory surgery center billing playbook
Multiple-procedure discounting, implant billing, and the documentation specifics that make ASC AR clean.
Read →Ophthalmology billing playbook
Bilateral procedures, modifier 50 vs. LT/RT, cataract bundling, and the retinal imaging denials that eat operating margin.
Read →Orthopedics billing playbook
Global surgical periods, modifier 24, 25, 57, 58, 78, 79, DME billing, and the fracture care coding rules that drive avoidable denials.
Read →Specialties overview
The full specialty index. Currently six. More in production.
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THE DISPATCH
Monthly. One email. No fluff.
One specific revenue cycle insight per issue: a billing pattern, a payer behavior shift, a workflow design that’s working, or a front-end fix that prevents downstream denials. Under five minutes to read. The first Tuesday of every month.