How to File a Health Insurance Claim Successfully

Dealing with health insurance claims can be confusing and frustrating. However, learning the process and what to do at each step can make it much more manageable. This comprehensive guide will walk you through everything you need to know to file a health insurance claim correctly and get reimbursed for your medical expenses.



What is a Health Insurance Claim?

A health insurance claim requests your insurance provider to cover some or all of your medical costs. The Claim details the healthcare services you received and how much they cost and asks the insurance company to pay its share under your policy agreement.

You typically need to file a claim after receiving medical care from a doctor, hospital, lab, or other provider. The provider bills you first, then you submit the claim to your insurer to cover the costs.


When to File a Claim

There are several situations when you'll need to submit a health insurance claim:


  1. After visiting an out-of-network provider, if the provider is not in your plan's network, you'll pay upfront and need to file a claim to get reimbursed for the insurer's portion.
  2. When a network provider doesn't bill the insurer directly. Some providers may ask you to pay upfront and submit the Claim yourself.
  3. For covered services not fully paid by the insurer. If you receive an Explanation of Benefits (EOB) showing you owe additional costs, file a claim to have the insurer reprocess and potentially reimburse you.
  4. To be repaid for prescription drugs. When you pay out-of-pocket for a prescription at the pharmacy, submit a claim to have your insurer cover its share.
  5. For out-of-country emergency medical care. The insurer should reimburse you for covered expenses over your deductible if you get emergency treatment while traveling.

How Often Can You File a Claim?

Most health insurance companies are open to how often you can submit claims. You can file them as frequently as you have eligible medical expenses.

However, claims do need to be filed within a specific timeframe, often 180 days from the date of service. Check your insurer's policies to ensure you meet any claim filing deadlines.


What Information is Needed to File a Claim?

Filing a complete and accurate claim is crucial for getting reimbursed quickly. Here are the key details you'll need to provide:





  1. Policy information - The insurer's name, your member ID number, and group number (if applicable). This helps identify that you have active coverage.
  2. Patient information - The full name, date of birth, and relationship to the policyholder of the patient who received services.
  3. Provider information - The name, address, tax ID, and National Provider Identifier (NPI) of the doctor/facility that provided treatment.
  4. Date(s) of service - The date or date range the medical services were received.
  5. Diagnosis codes - The diagnosis codes (ICD-10 codes) describing the health conditions treated.
  6. Procedure codes - The Current Procedural Terminology (CPT) codes for all services rendered.
  7. Charges - The amount charged by the provider for each service.
  8. Proof of payment - Receipts showing what you paid the provider for their services.

How to File a Claim with Your Insurance Company

Here are the typical steps to file a medical claim and get reimbursed:


1. Request an Itemized Bill

Contact the healthcare provider to request an itemized bill listing the services provided, diagnosis and procedure codes, and charges for each. This is the required documentation for your Claim.


2. Complete a Claim Form

Fill out your insurer's claim form, either on paper or electronically. Enter all the above policies, patients, providers, diagnoses, procedure codes, and payment details. Double-check for accuracy.


3. Attach Supporting Documentation

Along with the claim form, provide copies of:

  • Itemized bill(s) from the provider
  • Proof of payment, such as receipts
  • Explanation of Benefits statements (if applicable)


4. Submit the Claim

Send the complete Claim by mail or electronically to your insurance company. Keep copies for your records.


Mail paper claims to the address on your insurance card. Check your insurer's website for electronic submission, as portals and processes vary.


5. Follow Up on the Claim

Confirm the insurer received the Claim. Check the processing status online or by calling. Handle any requests for additional information promptly.


6. Review the EOB Statement

Once processed, you will receive an Explanation of Benefits (EOB) statement from the insurer showing if/how the Claim was paid. Review it for accuracy.


7. Resubmit a Denied Claim

If your Claim is denied, call your insurer to understand why and determine if you can appeal or need to send corrected information. Don't give up right away.


Tips for Filing Health Insurance Claims Successfully

  1. Check your plan details - Confirm services are covered and providers are in-network to minimize denial risk. Know cost-sharing like deductibles, too.
  2. Keep good records - Maintain well-organized records of medical bills, EOBs, and claim documents so details are easily accessible.
  3. Provide complete information - Double-check that all required information is included before submitting to prevent processing delays.
  4. Make copies of everything - Keep copies of all paperwork sent to the insurer to help with follow-up or appeals.
  5. Meet claim filing deadlines - Submit claims ASAP and always within the insurer's window (often 180 days from the service date).
  6. Follow up if unpaid - Don't wait more than 30 days for reimbursement before checking the status and following up.
  7. Correct errors immediately - If a claim is denied or reimbursement is less than expected, promptly determine if you need to send corrected information.



Common Reasons Insurance Claims Are Denied


Even well-filed claims sometimes get denied, often for fundamental reasons. Here are some of the most common:


  1. Expired or incorrect policy number - Having wrong information, like an old policy number, leads to denial. Provide current details.
  2. Patient ineligibility - The insurer may claim the patient is not covered if a dependent child has aged out of eligibility. Confirm coverage dates if this arises.
  3. Duplicate Claim - Accidentally submitting billing info twice can trigger fraud concerns and denial. Adjust and refile correctly.
  4. Non-covered services - Lacking plan coverage for specific healthcare services will lead to claim rejection. Check your benefits.
  5. Out-of-network provider - Seeing a doctor outside your insurer's network leads to lower reimbursement or denial in non-emergencies. Stay in-network when possible.
  6. Non-medical expenses - Health plans only cover medical services, so claims for non-covered items get denied. Omit charges for medical supplies, over-the-counter drugs, etc., that aren't explicitly covered.
  7. The time limit expired - Not abiding by the insurer's claim submission window, often 180 days, leads to automatic denial. File promptly.
  8. Incorrect diagnostic codes - Inaccurate ICD-10 diagnosis codes create questions on appropriateness and medical necessity. Provide documentation backing up the codes.
  9. Missing documentation - Important documents like itemized billing statements must be attached for claim processing and reimbursement. Double-check for completeness.

Claim Denial Appeal Process

If your health insurance claim is denied, you can appeal the decision. Here is the standard appeal process:


1. Review the EOB statement - Closely examine the Explanation of Benefits showing claim denial to understand the specific reason given. Discuss with your provider if it is you need clarification.

2. Contact customer service - Call your insurer's customer service line to ask questions and get clarification on the denial. See if it can be resolved amicably at this stage.

3. File a first-level appeal - Submit a formal appeal in writing within the timeframe specified by your insurer, often 180-365 days. Provide all relevant documentation and reasoning for reimbursement and request a re-review.

4. Escalate to second-level appeal - If your first appeal is unsuccessful, progress to a second-level appeal, which will trigger an independent clinical review. Supply added information supporting medical necessity.

5. Engage outside help - For final appeals, engage professional assistance from consumer groups, legal aid, or regulatory agencies to strengthen your case and potentially spur external review.

6. Consider legal action - If the appeals process is exhausted with consistent denials, legal action may be an option, although time-consuming. Get attorney guidance on the merits of a lawsuit.





Comparison of Major Health Insurance Providers

Health InsurerPlans OfferedProvider NetworkPrescription CoverageCustomer Service ReputationClaim Processing Times
AetnaHMO, PPO, POS, HDHP, DentalVast national networkGenerous coverage through pharmacy benefits managerMixed reviewsAverage 14 days
Anthem Blue Cross Blue ShieldHMO, PPO, HDHP, DentalLargest BCBS networkIn-house pharmacy benefits managementMixed reviewsAverage 10-14 days
CignaHMO, PPO, POS, HDHP, DentalExtensive national and international networkManages pharmacy benefits internallyGood reviewsAverage 14-21 days
HumanaHMO, PPO, POS, HDHP, DentalStrong in Southern statesUses Prime Therapeutics as PBMMixed reviewsAverage 14-21 days
Kaiser PermanenteHMO, HDHPIntegrated network limited to regions servedManages pharmacy benefits internallySuperior reviewsAverage 10-14 days
UnitedHealthcareHMO, PPO, POS, HDHP, DentalLargest national networkOptumRx pharmacy benefits managerMixed reviewsIntermediate 7-14 days


This table provides a summary overview of claim processing reputation and times for some of the largest private health insurance providers in the U.S. Actual experiences may vary. Those with straightforward claims who submit complete documentation and follow up diligently tend to report faster processing times. Appealing denied claims always adds more time to eventual reimbursement.


Step-by-Step Guide to Checking Claim Status Online

Checking your claim status online is fast and straightforward with most major health insurance providers. Follow these steps:


  1. Locate your insurer's member portal website or claims lookup page. Often, the URL is on the back of your insurance ID card.
  2. Enter your login credentials. These are your member ID, date of birth, and an established password connected to your account.
  3. Navigate to the claims status lookup tool. A tab or option is usually labeled "View Claims" or "Check Claims Status."
  4. Input your search parameters. You must enter details like service date, provider name, claim number, or patient name to pull up the Claim.
  5. View current status. The portal will display where the Claim is in process, such as "Received," "In Review," "Paid," or "Denied." Some details on the dates and amounts paid/owed may also be visible.
  6. Drill down for more detail. Many portals allow you to click for additional info like the EOB statement, exact denial reasons, or next steps to potentially appeal.
  7. Save and print records. Be sure to save or print documentation received online for your records.

Checking claim status online is fast, convenient, and eliminates the need to make phone inquiries. Consult your insurer's website for their specific process.


Steps to File Claims for Out-of-State Dependents

Filing health insurance claims for dependents living out-of-state involves a few extra steps:


  1. Verify coverage details. Confirm the dependent child or other relation is actively enrolled in your current health plan to receive benefits. Knowing the coverage effective dates is essential.
  2. Check provider network status. Is their treating out-of-state provider(s) within your plan's covered network? Balance billing may increase if you use an out-of-network doctor.
  3. Collect itemized billing information. Obtain comprehensive billing statements and codes from the medical providers involved. Obtain needed medical records and release consent from the dependent.
  4. Ask about claim submissions. Determine if the provider will file the Claim on the dependent's behalf or if you need to handle submission directly. Follow the proper protocol.
  5. Submit complete details. When filing the Claim, clearly indicate that it is for an out-of-state dependent member living at their address. Provide their provider's information.
  6. Follow up diligently. With an out-of-state dependent, clarity on claim needs may take more work. Check status online frequently and call customer service with any questions.
  7. Have dependent assistance as needed. Loop in the conditional to obtain information from the provider, appeal denials, etc., to reduce delays and get reimbursed faster.


With good organization, clear communication, and persistence, claims for out-of-state dependents can be filed smoothly. Allow added time for processing and rigorous follow-up.


Common Health Insurance Claim Problems and Solutions

Problem: The claim was denied as a duplicate when it was only submitted once.

Solution: Contact the insurer to explain, provide proof of single submission, and request a re-review of original claim evidence.


Problem: Claim reimbursement is less than expected.

Solution: Check if deductible/coinsurance was applied correctly, contracted rates were used, etc. Appeal with supporting details if the insurer's calculations look incorrect.


Problem: The claim was denied because no pre-authorization was obtained.

Solution: Some plans require pre-approval of certain services. Explain oversight to the insurer, request retroactive authorization, and refile the Claim.


Problem: Claim denied as "medically unnecessary."

Solution: Submit medical evidence from a doctor explaining the medical need for services provided. Have the provider advocate on your behalf.


Problem: Doctor/hospital bills patient directly, saying the Claim is unpaid.

Solution: Contact the insurer to determine if the Claim was submitted/paid. If not, file the Claim immediately with all required details and follow up to resolve communication gaps.


Problem: Reimbursement is delayed; the status must be clarified after filing.

Solution: Be persistent in following up via phone and written communication. Escalate to supervisor if needed.


Problem: File rejected, saying patient ineligible, but coverage confirmed.

Solution: Supply documentation verifying active health plan enrollment on the service dates. Get enrollment discrepancies corrected.


Staying calm yet assertive, seeking clarity from medical providers, and keeping detailed records help overcome common claim problems and get rightful reimbursement.


Appealing a Medical Claim Denial

Appealing a denied health insurance claim follows these key steps:


  1. Review denial rationale - Your insurer's EOB statement should explain the claim denial's specific reason. Understand why before appealing.
  2. Dispute inaccuracies - If denial is based on incorrect information like an invalid policy or wrong patient identity, immediately send documentation to correct the facts.
  3. Provide more documentation - For denials due to insufficient evidence of medical necessity or coding errors, supply letters from your doctor and medical records to fill informational gaps.
  4. Check plan coverage - Claims denied for non-covered services under your policy are hard to dispute. Be sure treatment was actually included in your benefits.
  5. Watch deadlines - Note the time limit to file an appeal (usually 180-365 days) and respond promptly to avoid losing appeal rights. Keep detailed records tracking appeal activity and proof of timely response.
  6. Follow up diligently - After starting the appeals process, stay on top of status updates, return insurer requests promptly, and escalate the review if needed to get a resolution.
  7. Request case notes - Ask for written notes, call recordings, and anything documenting the insurer's reasons for upholding the denial. Analyze this information for any procedural errors or basis to further appeal.




With persistence and diligent documentation, many claims initially denied are eventually overturned and paid out on appeal. Know your rights; don't take the first "no" as the final answer.


Critical Time Limits for Claim Filing and Appeals

Here are critical time limits to understand when disputing a denied insurance claim:


  1. Claim filing deadline - The standard limit is 180 days from the service date, though policies vary. Claims filed outside the window are often automatically denied.
  2. Notice of denial - Insurers have 30 days to process clean claims and notify you of denial in urgent cases or up to 60 days for non-urgent. Watch for delays.
  3. First-level appeals - You typically have 180-365 days from denial to file a first appeal. Look for a specific window in your insurer's policies.
  4. Second-level appeals - After an unsuccessful first appeal, you often have 60 days to request a second-level review.
  5. Lawsuits - If fully exhausted internal appeals with an insurer fail, you may file a lawsuit. The typical statute of limitations is 1-3 years, depending on the state.
  6. Prior authorization - Requesting pre-approval for procedures usually needs to be done at least 2 weeks in advance. Ask your doctor for help meeting notice requirements.

Verifying precise time limits and documenting when each action was taken is essential when disputes arise over appeal windows, authorized services, and claim reimbursements.


Steps to Take if You Miss the Claim Filing Deadline

If you've missed your health insurer's claim filing window, typically 180 days from the date of service, try these steps:


  • Act quickly - As soon as you realize the deadline was missed, start the appeal process, asking for an exception before the window closes completely (often 365 days from the service date).
  • Cite exceptional circumstances - Provide written explanation and documentation for why the claim filing was delayed. Reasons like being immobilized after surgery, an address change, and missing insurer notices can show why ordinary time limits were hard to meet.
  • Offer compromise - Acknowledge the lateness and accept the potential for reduced reimbursement when asking the insurer for leniency and to process the out-of


Frequently Asked Questions about Filing Health Insurance Claims

Q: How long does it take for a claim to be processed?

A: Most health insurance claims are processed within 30 days, though some take up to 60 days. Claims requiring additional information or review may take longer.


Q: Can I check the status of my Claim online?

A: Most insurance providers let you check your claim status through their online member portal for faster updates.


Q: What is an Explanation of Benefits (EOB)?

A: An EOB is a statement from your health insurer explaining how they processed your medical Claim, including what was paid, denied, etc. Review it closely.


Q: How can I avoid claim denials?

A: Submit claims entirely and accurately, follow your insurer's procedures, confirm services are covered beforehand, and meet all required deadlines to minimize denials.


Q: What should I do if my Claim is denied?

A: Read your EOB for the reason for denial. If you disagree, start the appeals process promptly and provide additional documentation support.


Q: How much can I expect to be reimbursed?

A: Reimbursement depends on your plan benefits, deductibles met, in-network status of providers, and other factors. Review your EOB for exact determination details.


Q: Can I file a claim for prescription drugs?

A: You can submit claims to your health insurer for covered prescription medications purchased at the pharmacy. Attach receipts and prescription details.


Q: Where should I call with questions about my claims?

A: Contact your health insurance company's customer service line on your insurance ID card or website.


Following the steps outlined in this guide will help you file accurate claims, get timely reimbursement, and effectively appeal any claim denials. Let me know if you have any other questions!