ClaimBack Blog

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

March 1, 2026

What Is Medicare Part D? Drug Coverage Explained

Medicare Part D covers prescription drugs through standalone or Medicare Advantage plans. Learn about formulary tiers, t

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March 1, 2026

What Is Medigap? Medicare Supplement Insurance Explained

Medigap fills the gaps in original Medicare coverage. Learn about Plans A through N, what they cover, when they deny, an

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March 1, 2026

What Is Milliman Care Guidelines (MCG) for Insurance?

Milliman Care Guidelines are used by many insurers to make coverage decisions. Learn how MCG works, how to get the crite

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March 1, 2026

What Is a Non-Formulary Drug Denial?

A non-formulary denial means your drug isn't on your plan's approved list. Learn about exceptions, therapeutic alternati

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March 1, 2026

What Is Open Enrollment Period for Health Insurance?

Open enrollment is your annual window to sign up for health insurance. Learn OEP dates for ACA, employer plans, and Medi

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March 1, 2026

What Is an Out-of-Network Denial?

An out-of-network denial can leave you with a massive bill. Learn about emergency exceptions, the No Surprises Act, and

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March 1, 2026

What Is a Patient Advocate for Insurance Disputes?

Patient advocates help fight insurance denials, billing errors, and coverage disputes. Learn what they do, where to find

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March 1, 2026

What Is a Pharmacy Benefit Manager (PBM)?

PBMs control what drugs your insurance covers and at what cost. Learn how CVS Caremark, Express Scripts, and OptumRx sha

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March 1, 2026

What Is a POS Health Insurance Plan?

A POS plan blends HMO and PPO features. Learn how Point of Service plans work, when referrals are required, common denia

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March 1, 2026

What Is a PPO? Preferred Provider Organization Explained

PPO plans offer flexible access to any doctor with no referral needed. Learn how PPOs work, in vs out-of-network costs,

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March 1, 2026

What Is a Pre-Existing Condition Exclusion?

Pre-existing condition exclusions were outlawed for most plans by the ACA. Learn what still applies, HIPAA portability r

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March 1, 2026

What Is the Premium Tax Credit (ACA Subsidy)?

The ACA premium tax credit reduces your Marketplace health insurance costs. Learn eligibility, APTC vs reconciliation, a

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March 1, 2026

What Is a Qualifying Life Event for Health Insurance?

A qualifying life event lets you change health insurance outside open enrollment. Learn the full QLE list, how to docume

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March 1, 2026

What Is a Quantity Limit Denial for Medication?

Quantity limit denials restrict how much medication you can get per fill. Learn why insurers impose them, how to request

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March 1, 2026

What Is Reinsurance? (And Why It Sometimes Affects Claim Decisions)

Learn what reinsurance is, how it works behind the scenes in health and property insurance, and why reinsurance arrangem

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March 1, 2026

What Is Rescission of Health Insurance Coverage?

Rescission is the retroactive cancellation of your health insurance policy. Learn when it's legal post-ACA, your rights,

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March 1, 2026

What Is Insurance Policy Rescission? Your Rights Under the ACA

Insurance rescission means your insurer cancels your policy retroactively, often after a large claim. Learn when resciss

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March 1, 2026

What Is a Retrospective (Retroactive) Claim Denial?

A retrospective denial means your insurer paid then took the money back. Learn why this happens, your appeal rights, and

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March 1, 2026

What Is a Special Enrollment Period (SEP)?

A Special Enrollment Period lets you enroll in health insurance outside open enrollment after a qualifying life event. L

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March 1, 2026

What Is a Specialty Drug Tier in Insurance?

Specialty drug tiers put life-saving medications out of reach for many patients. Learn how tier 4 and 5 drugs work, what

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