ClaimBack Blog

Expert advice on appealing denied insurance claims. Learn the strategies that work across Singapore, UK, UAE, Australia, and beyond.

February 28, 2026

Cigna Sleep Apnea or CPAP Denied? Complete Appeal Guide

Cigna denied CPAP or sleep apnea treatment? Learn CPB 0381 AHI thresholds, AASM hypopnea criteria, home sleep test vs. p

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February 28, 2026

Cigna Denied Your Sleep Study? How to Appeal

Cigna denied your sleep study or sleep apnea treatment? Learn Cigna's CPB 0381 coverage criteria, AASM AHI standards, po

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February 28, 2026

Cigna Speech Therapy Denied? Maintenance vs. Skilled Care Rights

Cigna denied speech therapy? Learn how CPB 0325, Jimmo v. Sebelius, ASHA guidelines, and EPSDT pediatric rights can over

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February 28, 2026

Cigna Denied Your Spinal Fusion? How to Appeal

Cigna denied coverage for spinal fusion surgery? Learn why Cigna denies spinal fusion claims, NASS clinical guidelines,

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February 28, 2026

Cigna UK / International PMI Claim Denied: How to Appeal

Cigna UK or Cigna Global denied your private medical insurance claim? Learn the common denial reasons, your rights under

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February 28, 2026

Cigna Denied Your Urgent Care Visit? Here's How to Appeal

Cigna denied an urgent care visit claim? Understand retroactive denials, the prudent layperson standard, and how to appe

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February 28, 2026

Cigna Denied Your Weight Loss Medication? How to Appeal

Cigna denied coverage for weight loss medications (Ozempic, Wegovy, Mounjaro)? Learn CPB 0618 criteria, step therapy req

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February 28, 2026

Claim Denied for Coordination of Benefits: How to Appeal

Insurance denied your claim due to coordination of benefits? Learn how COB works, why denials happen, standard insurer a

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February 28, 2026

Claim Denied as Duplicate: How to Appeal

Insurance denied your claim as a duplicate? Learn why duplicate denials happen, how to prove your claims are legitimate,

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February 28, 2026

Claim Denied as Experimental or Investigational: How to Appeal

Insurance denied your treatment as experimental or investigational? Learn the appeal strategies, legal protections, and

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February 28, 2026

Insurance Claim Denied After a Hospital Stay: Your Complete Guide

Hospital stay claim denied? Learn why insurers deny inpatient claims, how to document medical necessity, and how to appe

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February 28, 2026

Dental Implants Denied by Insurance? How to Appeal

Dental implants are almost always excluded from dental insurance, but there are medically-based arguments to get implant

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February 28, 2026

Dental Insurance Claim Denied? How to Appeal

Dental insurance denied a crown, root canal, implant, orthodontic treatment, or gum surgery? Dental claim denials are ve

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February 28, 2026

Dental Insurance Claim Denied? CDT Code Disputes, Medical-Dental Crossover, and Sleep Apnea Appeals

Dental insurance denied your oral surgery, crown, or sleep apnea oral appliance? Learn CDT code disputes, how to argue m

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February 28, 2026

Disability Insurance Claim Denied? ERISA Appeals, Own vs. Any Occupation, and the 180-Day Deadline

Long-term disability claim denied? Learn your ERISA appeal rights, how insurers exploit the 'own occupation' vs 'any occ

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February 28, 2026

Entresto Denied by Insurance? How to Appeal

Insurance denied Entresto (sacubitril/valsartan) for heart failure? Learn how to appeal an Entresto prior authorization

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February 28, 2026

Epilepsy Medication or Device Denied by Insurance? How to Appeal

Epilepsy medications (Epidiolex, Vimpat, Briviact, Xcopri) and neurostimulation devices (VNS, RNS, DBS) are frequently d

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February 28, 2026

ERISA Insurance Appeal Rights: What Employer Plan Members Must Know

A complete guide to ERISA appeal rights for employer health plan members โ€” 180-day deadlines, full file request, full an

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February 28, 2026

US Expat International Health Insurance Claim Denied? How to Appeal

American expats living abroad with Cigna Global, Aetna International, Allianz Care, or BUPA face unique claim denial cha

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February 28, 2026

How to Write an Insurance Appeal Letter That Gets Results

A well-written insurance appeal letter dramatically increases your chances of overturning a denial. Learn the exact stru

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