FAQs & Resources

The first few days matter because deadlines start running and evidence can be lost. Here is a practical, step-by-step approach:

1. Calendar the deadline immediately.
   Note the date you received the denial and the appeal deadline listed in the notice. If the notice is unclear, treat it as urgent and confirm the plan type quickly (employer plan, Marketplace plan, Medicare Advantage, etc.).
2. Request the plan documents and your claim file.
   You want the exact plan terms and the documents the insurer used to deny your claim. Ask for the plan documents (policy, Summary Plan Description, and related governing instruments) and also request the claim file, including any criteria, notes, or guidelines used in the decision.
3. Get your doctor involved early.
   Ask for a focused letter that explains diagnosis, medical need, what happens without treatment, and why alternatives are not appropriate. This is often the backbone of a strong appeal.
4. Build the appeal around the denial’s stated reason.
   Match your evidence to the insurer’s rationale and the controlling plan language. The goal is to make it difficult for the insurer to repeat the denial without addressing your evidence head-on.
5. Send the appeal in a trackable way and keep proof.
   Save everything: denial notice, Explanation of Benefits, medical records, letters, fax confirmations, portal screenshots, certified mail receipts, and a call log.
6. If the situation is urgent, ask about expedited review.
   Many systems have faster timelines when waiting would seriously jeopardize life, health, or the ability to regain maximum function.

If you upload your denial letter, we can usually identify the plan type, the decision basis, and the fastest compliant path forward.

Internal Appeal vs External Review: What’s the Difference?

When your insurer denies care, you usually have two separate ways to fight back. Think of it like this: first, you make them answer to their own rules, then you ask an independent reviewer to judge the call.

1) Internal appeal (the first fight)

This is the first formal step. You are telling the insurance company, “Take another look, with the full record in front of you.”

Who decides?
Your insurer or health plan usually goes through a different reviewer than the one who issued the denial.

What happens?
You submit what the insurer needs to confront, not what it hopes you will ignore, such as:

• medical records and test results
• a focused letter from your treating provider
• clinical support when appropriate
• the exact plan language the insurer relied on, and where it helps you

Why it matters:
This is where you build the file that the next decision-maker will look at. A weak internal appeal often stays weak later.

How long does it take?
Timelines vary by plan and claim type, but urgent cases often move faster than standard cases. Many systems use about 72 hours for urgent review and roughly 30 to 60 days for standard review.

2) External review (the independent decision)

If the plan still says no after the internal appeal, many people have a second option: a review by someone outside the insurance company.

Who decides?
An Independent Review Organization (IRO) or a state-approved external reviewer. The key point is that the reviewer is not the insurer.

What happens?
The reviewer looks at:

• the medical record
• the plan terms
• the denial reason
• the medical-necessity standard being applied

Then they issue a decision.

When is it available?
For most non-grandfathered health plans, external review is available under federal rules after you complete the internal appeal (with limited exceptions and special rules for urgent situations). Whether the external review runs through a state process or a federal process often depends on how the plan is funded and regulated.

How long does it take?
Common benchmarks are:

• Standard external review: about 45 days
• Expedited external review: as fast as 72 hours, when waiting would seriously jeopardize health

Is it binding?
In most cases, the plan must comply with the external review decision, though other legal options may still be available depending on the plan and the governing law.

A critical note about Medicare Advantage

Medicare Advantage (Part C) does not use the ACA external review system. It has its own appeal ladder, including an independent review at the second level. The concept is similar, but the rules and steps are different.

Bottom line

An internal appeal is your chance to force the insurer to deal with the evidence and the plan terms. An external review puts the decision in the hands of an independent medical reviewer. Both can matter. Deadlines can be short. Missing a step can limit what comes next.

If you upload your denial letter, I can usually tell you which path applies, what deadlines matter, and what the appeal needs to address.

1. Can I appeal a denial more than once?

In many cases, yes. But the real question is how many required “levels” of review apply to your plan, and whether you are referring to internal appeals (within the plan or the insurer) or external review (by an independent reviewer). Missing a required level can cut off later remedies.

1) Employer-Sponsored Plans (ERISA Plans)

Most employer plans require at least one internal appeal, and some require two. As a general rule, a plan’s claims procedure cannot require more than two mandatory internal appeals, although a plan may offer additional voluntary appeal levels.

Your denial letter must explain how to appeal and the time limit for doing so.
For group health claims, the appeal deadline is typically 180 days from the date of the denial.

2) ACA Marketplace Plans (and most non-grandfathered private health insurance)

Typically, you get one internal appeal, then you can request an external review by an independent reviewer. In the federal external review model, the request is generally due within four months after you receive notice of the final internal denial.
The external review decision is binding on the plan or insurer (and on the claimant), subject to limited exceptions.

If the situation is urgent, an expedited external review may be available, and the rules can allow requesting it at the same time as an expedited internal appeal.

3) Medicare Advantage (Part C)

Medicare Advantage appeals are multi-level. The regulations define an “appeal” to include reconsideration by the plan and, if necessary, further review by an independent review entity, then by an Administrative Law Judge (ALJ), the Medicare Appeals Council, and the court.
Also note the difference between an appeal and a grievance. Grievances generally do not have additional levels of review beyond the organization.

4) Non-ERISA Plans (church plans, some association arrangements, short-term policies)

These vary widely. Some allow one internal appeal, some allow two, and some add optional levels. The safest move is to treat the denial letter and your Certificate of Coverage as your “roadmap” and follow every listed step and deadline.

Practical tips

• Do not assume one appeal ends the process. Some plans build in a second required level.
• Use the denial letter as a checklist. It is supposed to spell out the procedure and deadlines.
• If time-sensitive care is involved, look hard for expedited internal and external review options.

What documents will help support my appeal?

Your appeal is a paper case. The record is the case. The stronger your documents, the harder it is for an insurer to repeat the denial without confronting the facts.

Below is the core set of documents that supports most health insurance appeal submissions, whether your coverage is an employer plan governed by the Employee Retirement Income Security Act of 1974 (ERISA), Marketplace coverage governed by the Affordable Care Act (ACA), Medicare Advantage (Part C), or another policy.

1) The denial paperwork (start here)

• Denial letter (or adverse benefit determination) with the stated reasons, plan citations, and deadlines
• Explanation of Benefits (EOB) showing what was billed, what was denied, and why
• Any prior authorization notices, referral denials, coverage determinations, or pharmacy denial notices tied to the same service

2) The plan language that controls coverage

• The full policy or certificate of coverage (including exclusions, definitions, and medical-necessity language)
• Summary Plan Description (SPD) if the plan is governed by the Employee Retirement Income Security Act of 1974 (ERISA)
• Any relevant riders, amendments, or benefit summaries that were in effect on the date of service

If you do not have these documents, request them. Appeals are difficult to win when you are arguing against rules you have not seen.

3) The complete medical record supporting the requested care

• Office notes and specialist notes that show symptoms, diagnosis, severity, and functional impact
• Imaging and test results (radiology reports, labs, pathology, genetic testing if relevant)
• Hospital records, operative reports, discharge summaries, and treatment plans
• Documentation of conservative care already tried (physical therapy, injections, medications, home exercise, prior procedures)
• Any clinical risk facts that make delay dangerous (progression, red flags, failed prior treatment, contraindications)

4) A targeted letter from the treating provider (the “why this, why now” document)

A strong letter of medical necessity does not sound like a form letter. It should:

• Address the exact denial reason using the insurer’s language
• Explain why the requested treatment is medically necessary for this patient
• Explain why alternatives are not appropriate, failed, or are contraindicated
• Describe the consequences of delay in plain medical terms
• Tie the request to clinical standards when appropriate

5) The insurer’s “claim file” and the criteria used to deny

This is the set of documents that often explains what really happened:

• Notes from utilization review
• Medical-necessity criteria used (including any internal guideline excerpts that were applied)
• Peer reviewer rationale, if a physician reviewer was involved
• Any internal communication, timelines, and decision logs that show what the insurer considered

If the denial relied on internal criteria, you want to know exactly what criteria were applied and whether they were applied correctly.

6) Clinical support when the denial is “experimental,” “investigational,” or “not proven.”

When the insurer leans on labels like “experimental” or “investigational,” the best support often includes:

• Relevant specialty society guidelines
• High-quality studies or systematic reviews
• Evidence of standard-of-care use in similar cases
• Clear explanation from the treating provider on why the treatment is appropriate for the patient’s diagnosis and condition

7) Documents for common denial types (use what fits)

• Out-of-network denial: network directory screenshots, referral documentation, provider availability and distance facts, and any network exception requests
• Step therapy denial: medication history, adverse reactions, contraindications, and treatment failures
• Prior authorization denial: the prior authorization request packet, dates submitted, and the insurer’s response timeline
• Post-service claim denial: itemized bills, procedure codes, chart notes that match the billed services, and any corrected claim submission

8) Your timeline and proof of submission

Winning appeals is not only about medicine. It is also about deadlines.

• A one-page timeline of events (request, denial, follow-ups, deadlines, submissions)
• Proof you submitted the appeal (portal confirmation, fax confirmation, certified mail receipt, and a saved copy of the completed packet)

Bottom line

A strong appeal is not built on disagreement. It is built on documentation that addresses the denial point by point, using the plan’s language and the medical record.

If you upload your denial letter, I can tell you which documents matter most for your specific denial reason and plan type, and what needs to be added before the deadline.

Yes. Your treating doctor can play a decisive role in a health insurance appeal. In many cases, a focused statement from the physician who knows your condition best is one of the most persuasive pieces of evidence you can submit. A strong appeal often succeeds because the doctor explains, in plain clinical terms, why the treatment is necessary, why it is appropriate now, and why the denial does not fit the medical record.

Here are the most effective ways your doctor can help.

1) Provide a strong Letter of Medical Necessity (LMN)

A Letter of Medical Necessity (LMN) is not a formality. Done well, it becomes the backbone of the appeal. The strongest letters are specific, organized, and written to the insurer’s stated reason for denial.

A good LMN should include:

• Your diagnosis and current condition, including severity and functional limits
• Why the requested treatment is medically necessary now
• What has already been tried, and why alternatives failed, were unsafe, or were not appropriate
• The risks of delay or denial are stated clearly (worsening symptoms, loss of function, progression, complications)
• Clinical support when appropriate, such as guideline-based care or medical literature
• A point-by-point response to the denial language using the insurer’s own terms (for example, “medical necessity,” “experimental,” “investigational,” “step therapy,” or “prior authorization”)

2) Supply complete medical records and objective support

Insurers often deny care because the documentation appears incomplete. Your doctor’s office can help by providing the records a reviewer relies on, including:

• Office notes and specialist notes
• Imaging and reports (MRI, CT, X-ray, pathology)
• Laboratory results and diagnostic testing
• Treatment history and response to prior care
• Operative reports and discharge summaries when relevant
• Documentation of conservative care already attempted

3) Fix the “missing piece” the insurer claims is absent

Many denials boil down to a statement like: “The record does not show X.” Your doctor can often solve that problem with a short addendum or letter that:

• States the missing clinical facts clearly
• Ties those facts to the requested treatment
• Explains why the insurer’s alternative is not appropriate for your case

4) Participate in a peer-to-peer review when offered

Sometimes the insurer offers a peer-to-peer call between your doctor and the insurer’s reviewing clinician. This can help when:

• The reviewer misunderstood the diagnosis or severity
• The plan applied criteria meant for a different condition
• Clinical nuance was lost in the written record

Peer-to-peer discussions are not always available, and they do not replace the written appeal record. When they are available, they can still be valuable if handled strategically.

5) Support an expedited appeal when care is urgent

If waiting could seriously jeopardize your health, your doctor can document the urgency and explain why an expedited review is medically appropriate. A clear statement of risk from a treating provider can make a meaningful difference.

6) Help correct administrative issues

Process errors, not medicine, drive some denials. Your provider’s office may be able to:

• Resubmit missing documentation
• Correct coding issues
• Confirm dates of service
• Provide prior authorization or referral documentation
• Submit materials through the insurer’s portal and save proof of submission

Practical tips

• Provide your doctor with the denial letter and ask them to respond directly to the insurer’s stated reasons.
• Ask for a structured letter tailored to your case, not a generic template.
• Respect your doctor’s time. A clear, well-organized one- to two-page letter is often better than a long narrative.
• If your doctor is unsure what to write, we can provide a focused outline for the doctor to review, revise, and sign.

Bottom line: Your doctor’s voice carries weight. When your treating physician explains why the denied care is necessary and supports it with documentation, it can be the difference between another denial and an approval.

Insurance companies deny claims in a handful of repeat patterns. The labels change, but the playbook is familiar: they deny by plan language, medical criteria, or process rules. “The fine print wins when nobody reads it.” My job is to read it, then draft an appeal that addresses every stated reason with the appropriate evidence.

Here are the most common denial reasons, grouped the way I see them in real denial letters and claim files.

1) “Not covered” under the plan

The insurer says the service is excluded or limited by the policy, for example:

• A plan exclusion excludes the treatment.
• A benefit limit applies (visit, day, or dollar limits).
• The drug is not on the formulary, or the drug class is excluded.
• The plan does not cover that category of service at all.

2) “Not medically necessary” or “not appropriate.”

This is the workhorse denial. The insurer claims the care does not meet its medical necessity criteria, or that it is not appropriate for your condition, setting, or timing. Federal claims rules explicitly treat denials based on medical necessity, appropriateness, or experimental or investigational status as “adverse benefit determinations,” which is why you see these labels so often.

Common variations include:

• “Not medically necessary” under internal criteria (often MCG or InterQual).
• “Wrong level of care” (inpatient vs. observation, residential vs. outpatient).
• “Wrong setting” (hospital vs. ambulatory, home health vs. facility).
• “Not effective” for your diagnosis, or not consistent with guideline criteria.

3) “Experimental,” “investigational,” or “unproven.”

This denial usually turns on how your plan defines those terms and the evidence you submit. It is also explicitly baked into the federal definition of an adverse benefit determination.
These disputes often involve:

• Newer therapies or off-label use.
• Genetic testing or advanced diagnostics.
• Specialized cancer drugs, biologics, or emerging protocols.

4) Prior authorization, referral, or utilization-management rules

Many claims are denied because the insurer says the required gatekeeping step did not happen, or the request did not meet the criteria:

• No prior authorization, or it expired.
• No referral, or the referral paperwork was not accepted.
• Step therapy (try-and-fail requirements).
• Quantity limits or dose limits.

5) Network rules and access restrictions

These denials show up as:

• Out-of-network provider or facility.
• “No network exception,” even when access is limited.
• Disputes about whether a specialist visit or a second opinion is permitted.

6) Documentation, coding, and paperwork problems

Sometimes the medicine is not the real issue. The claim is denied because the file is incomplete or coded incorrectly:

• Missing records or missing clinical notes.
• Billing or coding mismatch (procedure codes, diagnosis codes, modifiers).
• Claim filed incorrectly or missing required fields.
• Duplicate claim processing issues.

7) Eligibility, coverage status, or timing

These denials are often blunt:

• Coverage lapsed or terminated (including nonpayment situations).
• The service date falls outside the coverage period.
• The patient is not eligible for that benefit under the plan’s rules.

The key point for appeals

An appeal is not a complaint letter. It is a structured response to the insurer’s stated reasons, backed by the plan terms and the medical record. When a denial is based on medical judgment, the rules require the plan to provide, upon request, a fuller explanation of the clinical basis and any internal standards or guidelines used, in the manner required by the law for that plan—ERISA, ACA, or Medicare Advantage. And for many non-grandfathered plans, external review rights are designed for exactly these disputes, including medical necessity, appropriateness, level of care, effectiveness, and experimental or investigational determinations.

The timeline for a health insurance appeal depends on three main factors: (1) the type of plan you have, (2) whether the denial involves urgent care, pre-service care (authorization before treatment), or post-service care (a bill after treatment), and (3) which rules apply to your coverage. The good news is that most appeal systems have firm decision deadlines once your appeal is received.

Internal Appeals (Most Group Health Plans)

After you file an internal appeal, the plan generally must decide within these deadlines:

• Urgent care appeal: decision within 72 hours.
• Pre-service appeal (care not yet received): decision within 30 days (for plans with one level of appeal).
• Post-service appeal (a bill for care already received): decision within 60 days (for plans with one level of appeal).

Some plans provide two levels of internal appeals. If so, the deadlines are shorter per appeal (15 days pre-service; 30 days post-service).

Practical takeaway: if your case is not urgent, internal appeals often take about 30 to 60 days, depending on whether the denial involves pre-service or post-service care.

External Review (Independent Review After a Final Internal Denial)

External review is not limited to “non-ERISA” plans. Many plans, including many employer health plans governed by the Employee Retirement Income Security Act of 1974 (ERISA), fall under the Affordable Care Act (ACA) external review framework. Self-funded plans may use the Federal external review process when state external review does not apply.

If external review is available in your case:

• Deadline to request external review: generally within 4 months of the applicable final denial.
• Standard external review decision: generally within 45 days after receipt of the request for external review.
• Expedited external review decision (urgent cases): within 72 hours.

Litigation (When the Appeal Process Is Over)

• ERISA health plans: after you complete the required internal appeal process (and, when applicable, external review), you may be able to file suit. Court timelines vary widely and can take many months or longer depending on the forum, briefing schedule, and case posture.
• Non-ERISA plans: You may have state-law litigation options depending on the policy and the facts.

Bottom Line

• Urgent cases: can move in 72 hours (urgent internal appeals and expedited external review).
• Standard internal appeals: typically 30 to 60 days, depending on pre- or post-service.
• External review: can add up to 45 days (unless expedited).

If you upload your denial letter, I can confirm which track applies (insured plan, self-funded plan, Marketplace plan, Medicare Advantage, or other) and map the deadlines based on the notice dates.

If your health insurance appeal is denied, it does not necessarily mean the end of the road. What happens next depends on what kind of plan you have, whether the plan is grandfathered, and where you are in the process.

1) Most non-grandfathered private plans (Marketplace and employer coverage)

For most non-grandfathered group and individual health coverage, the plan must have an internal claims and appeals process and an external review process.

What “external review” means:
External review is an independent review by a reviewer or review organization that is not the insurance company. If you win, the plan or insurer must cover the care. (In many cases, the decision is binding.)

Deadline to request external review:
You must be given at least four months to request an external review after receiving the relevant denial notice.

How fast external review happens (standard vs expedited):
A standard external review decision is generally due within 45 days, and an expedited external review decision can be due as fast as 72 hours, depending on the situation.

If the plan broke the rules during your appeal:
If the plan materially fails to follow required claims and appeals rules, you may be treated as having exhausted the process, which can let you move forward to external review or to court, depending on the plan and claim.

If you lose external review:
External review decisions are generally binding, although the rules also recognize the possibility of judicial review in appropriate cases.

2) Medicare Advantage (Medicare Part C)

Medicare Advantage is different. If your Medicare Advantage plan denies coverage and you appeal, you are in the Medicare appeals system, which includes an “appeal” and later levels of review.

If the plan continues to deny after its reconsideration:
The case can be forwarded for independent review, and Medicare rules provide additional levels, including the right to request a hearing with an Administrative Law Judge (ALJ), review by the Medicare Appeals Council, and, when available, judicial review.

Fast-track (expedited) Medicare Advantage appeals:
For expedited reconsideration, the plan must generally issue a decision within 72 hours (with limited exceptions for extensions).

3) ERISA plans (employer-sponsored coverage): what comes after the final denial

Many employer-sponsored plans are governed by the Employee Retirement Income Security Act (ERISA). After the internal appeals process (and any required external review, if applicable), the next step can be a civil action under section 502(a) of ERISA.

Two practical points that matter a lot in real life:

• The denial letter should tell you about your right to sue and the plan’s time limits.
• Deadlines vary. Some plans impose contractual limitation periods, and missing them can result in the case being dismissed. Always locate the plan’s stated time limits and treat them as urgent.

4) Other options, regardless of plan type

Even after a denial, you may still have options, depending on the plan and the facts:

• File a complaint with your state Department of Insurance (for many private plans), or with Medicare/Centers for Medicare & Medicaid Services (CMS) pathways for Medicare Advantage issues.
• Submit new evidence and ask the plan to consider it, especially if your condition changed or you have stronger medical support than you did during the first appeal.
• Explore temporary coverage routes (manufacturer assistance, hospital charity care, negotiated cash pricing) if treatment cannot wait.

Bottom line

Losing an appeal does not always mean the decision is final. Many people still have a next step, such as external review, the Medicare appeals levels, or (for ERISA plans) a civil action after exhaustion. The key is to identify your plan type and act before the next deadline.

Yes. People do win these appeals.

A denial letter is not a verdict. It is a decision you can challenge, and the data shows that denials are often reversed when patients actually appeal.

Here is what public reporting shows:

• ACA Marketplace plans (HealthCare.gov). In 2023, consumers rarely appealed denied in-network claims, but when they did, insurers upheld the denial 56% of the time. That means a substantial share of appealed denials were reversed at the internal appeal stage. (KFF)
• Medicare Advantage (Part C). In 2023, only 11.7% of denied prior authorization requests were appealed, but 81.7% of those appeals resulted in the plan overturning the denial. (KFF)

The takeaway is simple: appeals can work, but insurers benefit when people do not file them, file them late, or file them without the proper support.

How we push your odds in the right direction (without making promises we cannot ethically make):

1. Identify the real reason for the denial (medical necessity, plan exclusion, prior authorization, step therapy, out-of-network rules, benefit limits, documentation standards).
2. Match the appeal to your plan type and rules, including employer plans under the Employee Retirement Income Security Act (ERISA) and non-ERISA coverage like Affordable Care Act (ACA) Marketplace plans and Medicare Advantage (Part C).
3. Build a clean, persuasive record: the denial letter, the relevant plan terms, your medical records, and a targeted treating-physician letter that answers the insurer’s stated rationale.
4. Hit every deadline and submit a complete appeal the first time, because delays and missing documents are how valid claims die.

If you are in Kentucky or Ohio and you have a denial letter, we can review it, confirm what rules apply, and map the fastest path to the strongest appeal.