How to Appeal a Denied Health Insurance Claim in NC
Denied health insurance claim in NC? Learn the step-by-step appeal process, key deadlines, and when to seek help — from internal appeals to external review.
Denied health insurance claim in NC? Learn the step-by-step appeal process, key deadlines, and when to seek help — from internal appeals to external review.
North Carolina residents have a legal right to appeal a denied health insurance claim, both internally through their insurer and externally through an independent review.
Federal law under the ACA requires most health plans to complete an internal appeal decision within 30 days (for prospective/concurrent care) or 60 days (for claims already incurred).
If your internal appeal is denied, you can request an External Review through the NC Department of Insurance or a federally designated organization.
Keeping detailed records — every letter, call log, and explanation of benefits — is the single most important thing you can do to strengthen your appeal.
You do not have to navigate this alone: licensed agents, patient advocates, and the NC Department of Insurance Consumer Services Division can all provide free guidance.
A claim can be denied for several reasons, and understanding the specific reason is the first step toward a successful appeal. Common denial reasons include services deemed "not medically necessary," out-of-network provider use, missing prior authorization, billing code errors, and coverage exclusions.
Your insurer is required by law to send you an Explanation of Benefits (EOB) or denial letter that states the specific reason for the denial. Read it carefully — the reason code determines which argument you need to make in your appeal.
Billing and coding errors account for a significant share of denials and are often the easiest to fix. Before starting a formal appeal, call your provider's billing department to confirm the claim was submitted correctly.
North Carolina residents with ACA marketplace plans, employer-sponsored plans, and most other commercial health coverage have federally protected appeal rights under the Affordable Care Act. These rights include at least one level of internal appeal and access to an independent external review if the internal appeal fails.
Grandfathered health plans and some self-funded employer plans may operate under different rules. If you are unsure which rules apply to your plan, call your insurer or a licensed agent to clarify before you start the process.
Medicaid recipients in NC have their own separate appeals process through the NC Department of Health and Human Services (NCDHHS). Medicare beneficiaries have a distinct multi-level appeals process administered federally — if you have Medicare North Carolina coverage, request your plan's specific appeals instructions or contact 1-800-MEDICARE.
Start by collecting every document related to your denied claim. You will need your denial letter or EOB, your plan's Summary of Benefits and Coverage (SBC), any referrals or prior authorization approvals, medical records supporting the service, and a log of any phone calls you have made (date, name of representative, what was said).
Your denial letter must include the reason for denial, the plan provisions it is based on, and instructions for filing an appeal. If any of these are missing, contact your insurer in writing and request a complete denial notice — this is your right under federal law.
Organize everything chronologically in a dedicated folder, physical or digital. Good recordkeeping is not optional; it is what separates successful appeals from unsuccessful ones.
An internal appeal is a formal written request asking your insurer to reconsider the denial. Submit it in writing, even if your insurer allows phone appeals — a paper trail protects you.
What to include in your internal appeal letter:
Your name, member ID, and claim number
A clear statement that you are appealing the denial
The specific reason the denial is wrong (e.g., the service was medically necessary, authorization was obtained, the billing code was incorrect)
Supporting documentation: a letter of medical necessity from your doctor, relevant medical records, and citations from your plan's own coverage language
A request for a written decision
Send your appeal via certified mail or email with a read receipt so you have proof of the date it was received. Keep a copy of everything you send.
Know your deadlines. Under ACA rules, you generally have at least 180 days from the date of the denial to file an internal appeal. Do not wait — submit as soon as your documentation is ready.
The timeline depends on the type of claim. For urgent/expedited appeals involving ongoing or imminent care, the insurer must respond within 72 hours. For pre-service appeals (services not yet received), the deadline is 30 days. For post-service appeals (claims already incurred), the insurer has 60 days to issue a decision.
If your situation is medically urgent, request an expedited appeal explicitly in your letter and have your doctor call the insurer directly to stress the urgency. Expedited appeals run on a parallel track with the standard written process.
If the insurer misses its deadline, that may itself constitute a denial you can escalate to external review. Document the missed deadline in writing.
A letter of medical necessity (LMN) from your treating physician is often the most powerful document in a health insurance appeal. It should explain the diagnosis, why the specific treatment or service was required, what alternatives were considered and why they were inadequate, and the clinical evidence or guidelines that support the decision.
Ask your doctor to reference peer-reviewed clinical guidelines — such as those from professional medical societies — that support the treatment. Insurers use their own medical criteria, but they cannot simply ignore established standards of care.
If the insurer denied the claim based on a medical review, you or your doctor can request a peer-to-peer review: a direct conversation between your physician and the insurer's medical reviewer. Many denials are reversed at this stage before a formal appeal is even decided.
If your insurer upholds the denial after the internal appeal, you have the right to an External Review — an independent assessment by a third party that is not affiliated with your insurer. Under ACA rules, the external reviewer's decision is binding on the insurance company.
How to request an external review in NC:
Most ACA-compliant and state-regulated plans use the NC Department of Insurance (NCDOI) external review process. Contact NCDOI's Consumer Services Division at 1-855-408-1212 or visit ncdoi.gov.
Federal Employee Health Benefit (FEHB) plans and some self-funded plans use a federally designated Independent Review Organization (IRO) instead. Your denial letter should specify which process applies to you.
You generally have 60 days from the date of the final internal denial to request an external review.
The external review organization will notify your insurer, gather records, and issue a binding decision — typically within 45 days (or 72 hours for expedited reviews).
There is no cost to you to request an external review.
You can file a complaint with the NCDOI at any point in the process — you do not have to wait for the appeal to be resolved. The NCDOI Consumer Services Division reviews complaints about health insurance carriers in North Carolina and can intervene if an insurer is violating state law or its own policy terms.
Complaints can be filed online at ncdoi.gov, by phone at 1-855-408-1212, or by mail. Include copies of your denial letter, your appeal, and any correspondence from your insurer. Filing with the NCDOI creates a formal regulatory record that may prompt faster responses from insurers.
Filing a complaint does not replace the appeal process, but it adds regulatory oversight and can strengthen your case if issues of systemic non-compliance are found.
Seek help early if your claim involves a large dollar amount, an ongoing medical condition, a mental health or substance use disorder service, or if you simply feel overwhelmed. You have several free or low-cost options.
Licensed insurance agents can review your plan documents, explain your coverage, and help you understand what arguments are strongest. If you bought your plan through Health Plans of NC, reach out directly — we can help you navigate your health coverage questions.
Patient advocates are professionals who specialize in navigating insurer systems and can sometimes be hired on a contingency basis for large claims. Hospitals and large medical practices often employ patient advocates at no charge.
NC Legal Aid (legalaid.nc.gov) provides free legal assistance to qualifying low-income individuals dealing with insurance disputes. An attorney can write a more compelling appeal letter and, if necessary, pursue litigation.
The NC Department of Insurance Consumer Services Division (1-855-408-1212) offers free, impartial guidance to any North Carolina resident with a coverage complaint or appeal question.
If the external reviewer upholds the denial, your administrative remedies are generally exhausted. At that point, your remaining options include filing a lawsuit against the insurer (for plans governed by North Carolina state law) or, for ERISA-governed employer plans, pursuing a federal ERISA claim — which has a more limited scope of recovery.
An attorney who specializes in insurance bad faith or ERISA litigation can assess whether legal action is worthwhile based on the amount at stake and the strength of your case. Many offer free initial consultations.
Even after an external review denial, continue pursuing the care you need. Talk to your doctor about alternative covered treatments or financial assistance programs through your provider or pharmaceutical manufacturer.
Stage | Deadline to File | Insurer Response Time |
Internal Appeal (post-service) | 180 days from denial | 60 days |
Internal Appeal (pre-service) | 180 days from denial | 30 days |
Expedited/Urgent Appeal | As soon as possible | 72 hours |
External Review Request | 60 days from final denial | 45 days (72 hrs expedited) |
NCDOI Complaint | Any time | Varies |
Prevention is far less stressful than appeals. Always verify that your provider is in-network before scheduling non-emergency care. Obtain prior authorization for any service your plan requires it for — even if your doctor's office says they will handle it, confirm in writing that it was approved before the appointment.
Ask your insurer for a written confirmation of any authorization, and keep it. If you receive a denial for a service you believed was authorized, that confirmation becomes a powerful piece of evidence.
Review your health plans' Summary of Benefits and Coverage annually during Open Enrollment, especially when your health needs change, to ensure your current plan still covers what you need.
This article is for general information and is not insurance or medical advice. Consult a licensed agent.