How long does an internal appeal take for a prior authorization denial?

Prior authorization denials are usually pre-service appeals because the treatment has not happened yet. Healthcare.gov states the plan must complete that internal appeal within 30 days. If waiting 30 days would seriously jeopardize your life or ability to regain maximum function, you can request an expedited internal appeal. Healthcare.gov says the decision must come as quickly as your medical condition requires and at least within 4 business days after the plan receives the request, with written notice within 48 hours of a verbal decision.

How long does external review take after an internal appeal?

Healthcare.gov states standard external reviews must be decided no later than 45 days after the request is received. Expedited external reviews must be decided no later than 72 hours after the request is received, or sooner if the case is medically urgent. You must file external review within four months of the date you receive the plan's final internal denial notice. Medicare and Medicaid use different appeal systems with their own decision clocks.

Is a 30-day or 60-day appeal timeline the same for every plan?

No. The 30-day and 60-day patterns are federal standards for many ACA-regulated plans on Healthcare.gov and for ERISA group health plan appeal reviews described by the Department of Labor. Medicare Advantage, Part D, Original Medicare, Medicaid, and TRICARE print different timelines on their notices. A two-level internal appeal can also split the clock. DOL notes that when a plan requires two appeal levels, each review may use half the single-level time limit, such as 15 days per level for a pre-service ERISA appeal.

How long does an expedited health insurance appeal take?

On Healthcare.gov's urgent track, an expedited internal appeal must be decided as quickly as your medical condition requires and at least within 4 business days after the request is received, with written follow-up within 48 hours of a verbal decision. DOL says ERISA urgent-care appeal reviews must be completed no later than 72 hours after the plan receives the request. Healthcare.gov lists expedited external review at no later than 72 hours after the request is received. You generally need clinician support showing that the standard clock would seriously jeopardize life, health, or maximum function.

What happens if the insurer misses the appeal deadline?

On qualifying ACA plans, failing to meet required internal appeal decision deadlines can give you the right to go to external review. Healthcare.gov says you may request external review when the plan misses a required decision deadline, and in urgent situations you may file internal appeal and external review at the same time. Keep proof of when you filed and when the plan acknowledged receipt. If the plan is late, cite the missed deadline in writing and ask for the next step named on your denial notice.

How long does a Medicare appeal take compared to commercial insurance?

Medicare uses its own multi-level system, not the Healthcare.gov 30/60-day internal appeal table. Medicare.gov describes standard Medicare Advantage and Part D appeal decisions within 60 days for many levels, with 72-hour fast appeals when waiting for the standard clock may seriously jeopardize life, health, or ability to regain function. Original Medicare redeterminations also follow Medicare.gov notices rather than DOL ERISA appeal tables. Read the date and instructions on your Medicare Summary Notice or plan denial letter.

Does filing an appeal stop the bill from going to collections?

Filing an appeal does not automatically pause every billing clock. Some plans continue balance billing while they review the case, especially for post-service denials where care already happened. Ask the provider and plan in writing whether appeal status changes payment due dates. Focus on meeting the appeal filing deadline on your notice first. See what to do when an insurance claim is denied for first-step documentation while the appeal is pending.

How Long Does a Health Insurance Appeal Take?

Q: How long does a health insurance appeal take?

It depends on whether the denial is pre-service or post-service and whether you use the standard or expedited track. Healthcare.gov says internal appeals must be completed within 30 days for services you have not received yet and within 60 days for services already received. The Department of Labor gives ERISA group plans similar appeal-review limits: 30 days for pre-service appeals and 60 days for post-service appeals. If you qualify for expedited review, Healthcare.gov describes a decision at least within 4 business days for urgent internal appeals, while DOL caps ERISA urgent-care appeal reviews at 72 hours.

By AppealFlow editorial•12 min read•Published September 2026

Timeline diagram showing standard 30- and 60-day internal health insurance appeal clocks, expedited 72-hour review, and 45-day external review stages

Most commercial health insurance appeals take 30 days for pre-service denials or 60 days for post-service denials under Healthcare.gov rules, before you can ask for external review. Expedited internal appeals can move faster when waiting would seriously jeopardize your health. Standard external review must finish within 45 days on qualifying ACA plans; expedited external review within 72 hours. ERISA employer plans follow similar appeal-review clocks in the Department of Labor claims publication, but Medicare and Medicaid use separate notices.

What Timeline Should You Expect After Filing?

Key Takeaway: The clock that matters is how long the plan has to decide your appeal, not how long you had to file it. Pre-service denials usually move on a 30-day internal track. Post-service denials often get 60 days. Urgent cases can jump to expedited review when the standard wait is unsafe.

A health insurance appeal is your written request to overturn a coverage or payment denial. After you file, the plan reviews the medical record, plan language, and any new documents you send. The decision deadline depends on your plan type, whether the service already happened, and whether you qualify for expedited review. This page covers decision time. For how long you have to file, see how long you have to appeal a health insurance denial.

Many people search for one national number. Federal rules give floors and standard patterns, but Medicare, Medicaid, and some state-regulated plans print their own clocks on the notice. Start with the table below, then verify the source that matches your card and denial letter.

How Long Does Internal Appeal Take by Plan Type?

Key Takeaway: Healthcare.gov and the Department of Labor describe parallel standard and expedited clocks for many commercial plans. Medicare and Medicaid are different programs with different notices.

Plan type	Internal standard	Internal expedited	External review
ACA marketplace / individual / many group plans	Pre-service: within 30 days of receiving the appeal Post-service: within 60 days of receiving the appeal	As quickly as the medical condition requires, and at least within 4 business days after the request is received; verbal decision allowed, written notice within 48 hours	Standard: no later than 45 days after request received Expedited: no later than 72 hours after request received
ERISA employer group health	Pre-service appeal review: no more than 30 days after receiving the appeal request Post-service appeal review: no more than 60 days after receiving the appeal request	As soon as possible given medical needs, and no more than 72 hours after the plan receives the urgent-care appeal request	Non-grandfathered plans must offer external review. Federal standards on Healthcare.gov use 45-day standard and 72-hour expedited external review clocks after the request is received
Medicare / Medicaid	Follow the decision deadline on your Medicare Summary Notice or Medicaid managed-care notice, not the ACA 30/60-day table	Medicare fast appeals may be decided within 72 hours when waiting for the standard clock may seriously jeopardize life, health, or ability to regain function per Medicare.gov	Medicare uses QIC reconsideration and later levels, not ACA Section 2719 external review. Medicaid uses state fair hearing rules

Sources: Healthcare.gov internal appeals, Healthcare.gov external review, and the Department of Labor claims publication.

What Is the Difference Between Pre-Service and Post-Service Clocks?

Key Takeaway: Pre-service appeals cover care you still need, such as a refused MRI or denied prior authorization. Post-service appeals cover claims for care you already received. The standard internal clock is shorter for pre-service cases on Healthcare.gov.

Healthcare.gov says internal appeals for services you have not received yet must be completed within 30 days. Appeals for services you already received must be completed within 60 days. That split matters for surgery scheduling, infusion starts, and imaging orders where the denial arrived before the appointment.

DOL uses the same 30-day and 60-day appeal-review limits for ERISA group health plans. If your employer plan requires two internal appeal levels, DOL notes each level may use half the single-level time. A pre-service ERISA appeal with two levels could mean 15 days per review instead of one 30-day review.

How Long Does External Review Take?

Key Takeaway: External review happens after internal appeals end or when the plan misses a required internal deadline. On qualifying ACA plans, the independent reviewer must decide within 45 days standard or 72 hours expedited.

Healthcare.gov states standard external reviews are decided as soon as possible and no later than 45 days after the request is received. Expedited external reviews are decided no later than 72 hours after the request is received, or sooner when medically urgent. You must file within four months of receiving the plan's final internal denial notice.

External review is not the same program as Medicare appeals or a state Medicaid fair hearing. For what an IRO does and who qualifies, see what external review in health insurance means. In urgent situations, Healthcare.gov says you may file internal appeal and external review at the same time. See how to request an expedited insurance appeal for the clinician certification and filing channel.

What If the Insurer Misses the Appeal Deadline?

Key Takeaway: A missed plan deadline can open the next level faster than waiting for another internal letter. Keep proof of when you filed and when the plan acknowledged receipt.

Healthcare.gov says you can ask for external review when your insurer still denies your claim after internal appeals, and in urgent situations you may request external review even if you have not finished every internal level. If the plan is late on a required internal decision, cite the missed deadline in writing and ask for the escalation path named on your denial notice.

Late plan decisions do not extend your filing clock. You still must file internal appeal within the window on your notice, often 180 days for many commercial plans. A slow insurer does not give you extra time to start the appeal.

What Can Slow Down Your Appeal?

Key Takeaway: Missing records, wrong appeal level, and treating a peer-to-peer call as the formal appeal are the most common delays members control.

The plan requests more records and pauses the clock until you respond. DOL gives you at least 45 days to supply missing information on many ERISA appeals.
You filed a grievance or portal message instead of a formal appeal to the address on the denial notice.
You waited for a peer-to-peer call without filing the written appeal. The call does not replace the appeal clock.
The plan has two internal levels, so you may wait through two review periods before external review is available.

If you are at the very start of the process, what to do when an insurance claim is denied walks through the denial letter, EOB, and document checklist while the appeal is pending.

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Weak vs. Strong Language About Appeal Timelines

Key Takeaway: Name the track, the source, and the date you filed. Vague waiting language does not start or speed up the plan's clock.

❌ Weak Request	✓ Strong Request
“Please hurry, I need this soon.”	“This is a pre-service appeal filed [date]. Healthcare.gov requires a decision within 30 days. Please confirm receipt and the decision due date.”
“Every appeal takes 60 days.”	“This post-service claim denial requires a 60-day internal appeal review under Healthcare.gov. My appeal was received [date]; please advise if additional records are needed.”
“It has been a month, so I can go to external review.”	“Internal appeal filed [date]. No final determination by day 30. I request escalation to external review per Healthcare.gov and the instructions on my denial notice.”

Frequently Asked Questions

Decision timelines for internal standard and expedited appeals, external review, and Medicare differences.

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Disclaimer: This article is for educational purposes only and does not constitute medical, legal, or financial advice. AppealFlow.net is not a healthcare provider, insurance broker, or law firm. Appeal decision clocks differ by plan and program. Verify timelines on your denial notice, Healthcare.gov, DOL, Medicare.gov, or your state Medicaid agency before you rely on a date. For medical emergencies, call 911. See our full disclaimer.