Types of Prior Authorization: 9 Different Types Healthcare Providers Should Know
- November 4 2026
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Prior authorization is simple at its core: it’s permission. Before a health plan will pay for certain medications, tests, or procedures, it asks the treating provider to show the service is medically necessary first.
You may also hear it called preauthorization, precertification, or prior approval. These all mean roughly the same thing.
Health plans use it for two main reasons: to confirm a service fits accepted medical guidelines, and to help manage overall healthcare costs. It isn’t a judgment on your clinical skill. It’s simply a checkpoint the payer has built into its process.
There are different types of prior authorization in healthcare, based on when approval is reviewed and which services require it.
Prior Authorization vs. Precertification vs. Predetermination
Although these terms are often used interchangeably, prior authorization, precertification, and predetermination have important differences.Â
Term | Binding? | Used When |
Prior Authorization | Yes, required | Before a covered service, drug, or procedure |
Precertification | Yes, usually the same thing | Often interchangeable with prior authorization |
Predetermination | No, optional | For an early coverage estimate before a formal request |
The easiest way to remember it: predetermination is a preview, while prior authorization (and precertification) is a requirement. Since payers don’t always use these words consistently, check the payer’s own policy page when you’re unsure which one applies.
Key Prior Authorization Categories and Their Uses
Prior authorization can be classified based on two main factors: when the review takes place and the type of healthcare service involved. These categories help explain when providers may need approval and which services may require it.
Types of Prior Authorization Based on Review Timing
- Prospective (Standard) Prior Authorization
Prospective prior authorization takes place before a patient receives a planned service, medication, or procedure. The provider sends a request to the health plan with the necessary medical information. The payer reviews the request and decides whether to approve the service before treatment begins.
- Concurrent Prior Authorization
Concurrent prior authorization takes place while a patient is already receiving care. For example, a hospital may need approval for a longer inpatient stay or continued treatment. The health plan reviews the patient’s condition and medical records to decide whether additional care meets its coverage requirements.
- Retrospective Prior Authorization
Retrospective prior authorization involves requesting approval after a service has already been provided. Some health plans allow these requests in limited situations, but their rules vary. Approval is not guaranteed, so providers should check the payer’s policy before submitting a request.
- Urgent and Expedited Prior Authorization
Urgent or expedited prior authorization is used when waiting for a standard review could put a patient’s health at risk. Providers can request a faster decision by explaining why the treatment cannot wait.
Under the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F), certain impacted health plans must respond to urgent requests for medical items and services (excluding drugs) within 72 hours. For applicable Medicare Advantage, Medicaid, and CHIP plans, standard requests generally have a seven-calendar-day decision limit. These timelines have specific exceptions and extensions.
The main difference in urgent vs. standard prior authorization is how quickly the health plan reviews the request.
Types of Prior Authorization Based on Healthcare Services
- Prior Authorization Types for Prescription Medications
Some prescription medications require health plan approval before they are covered. These may include specialty drugs, certain brand-name medications, biologics, and some GLP-1 medications.
Payers may also require step therapy, which means a patient must try another medication before the requested drug is covered. Providers and pharmacies can use electronic prior authorization (ePA) to submit and track eligible requests.
- Medical Procedure and Surgical Prior Authorization
Certain planned surgeries and medical procedures require approval before treatment. Examples may include joint replacements, reconstructive surgeries, and other procedures covered by a health plan’s authorization policy.
Providers usually submit medical records, test results, and treatment details to show why the procedure is needed.
- Diagnostic Imaging Prior Authorization
Some diagnostic imaging services require prior authorization, particularly advanced tests such as MRIs, CT scans, and PET scans. Depending on the payer, certain genetic tests may also need approval.
The health plan may review the patient’s symptoms, medical history, and test results before making a decision.
- Durable Medical Equipment (DME) Prior Authorization
Some durable medical equipment requires prior authorization before the health plan will cover it. Examples include wheelchairs, hospital beds, oxygen equipment, and mobility aids.
Providers may need to submit medical records and other supporting information to explain why the patient needs the equipment.
A separate 2026 CMS update introduced a one-year probationary prior authorization program for certain DMEPOS items supplied by newly enrolled suppliers and suppliers with qualifying changes in ownership. This requirement took effect on October 15, 2026.
- Specialty Care Prior Authorization
Some specialist visits, referrals, and ongoing treatments require prior authorization. This may apply to specialties such as oncology, cardiology, neurology, and dermatology.
Requirements depend on the patient’s health plan and the type of care involved. Specialty care authorization may also include approval for related medications, imaging tests, or procedures.
Important: Emergency Care and Prior Authorization
Emergency care is generally treated differently from planned medical services. For emergency room services from an out-of-network provider or hospital, insurers cannot require patients to get prior approval before receiving care, subject to applicable legal protections and plan rules.
How the Prior Authorization Process Works
No matter which type you’re dealing with, the basic steps stay the same:
- Identify the need. Confirm whether the planned service, drug, or procedure requires prior authorization under the patient’s specific plan.
- Gather documentation. Collect the clinical notes, test results, and history that support medical necessity.
- Submit the request. Send it through the payer’s portal, by fax, or through a clearinghouse, whichever method that payer accepts.
- Follow up. Check pending requests and respond quickly if the payer asks for more information.
- Receive the decision. The payer approves, denies, or asks for more details. If denied, the practice can appeal.
Simple as these steps sound, each one takes real staff time. That’s exactly why so many practices eventually look for extra support as request volume grows.
Common CPT and HCPCS Codes That Require Prior Authorization
Exact requirements vary by payer, state, and site of service, but a few procedure categories show up again and again. These examples come from Medicare’s own Hospital Outpatient Department (OPD) prior authorization list:
Procedure Category | Example Codes |
Blepharoplasty, brow, eyelid repair | 15820 to 15823, 67900 to 67904 |
Cervical fusion with disc removal | 22551, 22552 |
Implanted spinal neurostimulators | 63650 |
Facet joint interventions | 64490, 64491 |
Commercial payers and Medicare Advantage plans often layer their own requirements on top of this list. For example, some knee arthroscopy codes need prior authorization under certain commercial plans. The safest rule of thumb: always check the current list for the specific payer before assuming a code is, or isn’t, on it. CMS updates its own list periodically, so it’s worth checking before every new procedure type, not just once a year.
2026 CMS Rules and Regulatory Changes Affecting Prior Authorization
CMS introduced several prior authorization updates in 2026 that healthcare practices should understand. These changes affect approval timelines, electronic requests, and the information payers must provide when they deny a request. Here are the key updates and what they mean for medical practices.
Rule | Status | Key Update |
CMS-0057-F | Final; effective Jan 1, 2026 | 7-day standard and 72-hour urgent decisions for covered non-drug requests. |
Proposed | Would extend electronic prior authorization rules to certain prescription drugs. | |
Active; started Jan 1, 2026 | Adds prior authorization and pre-payment review for selected Original Medicare services in six states. | |
Effective Oct 15, 2026 | Requires approval for listed equipment codes from certain newly enrolled or ownership-changed suppliers. |
What These Changes Mean for Medical Practices
These updates make it important for medical practices to stay informed about payer requirements and authorization deadlines. Staff may need to check approval timelines, prepare supporting medical records, submit requests through the correct channels, and follow up on pending decisions.
CMS-0057-F applies to specific health plans, including Medicare Advantage organizations and certain Medicaid, CHIP, and Marketplace plans. However, the 7-day and 72-hour decision deadlines do not apply to Qualified Health Plan issuers on Federally-facilitated Exchanges. These requirements also do not extend to Original Medicare fee-for-service or standalone Medicare Part D plans. The WISeR Model is a separate program for Original Medicare in six states. Always check the rules that apply to the patient’s specific health plan.
Organized prior authorization coordination can help practices keep requests moving, respond to payer questions, and reduce avoidable administrative delays.
Why Prior Authorization Creates an Administrative Burden for Practices
Prior authorization takes time away from other important tasks in a medical practice. Staff must review payer requirements, gather medical records, submit requests, and follow up on pending decisions.
According to the American Medical Association’s 2024 survey of 1,000 physicians, practices handle an average of 39 prior authorization requests per physician each week. Physicians and their staff spend about 13 hours per week on this work.
These demands make it important to have an organized process for managing authorization requests. With dedicated administrative support, practices can keep track of requests, coordinate required documents, and follow up with payers without placing the entire workload on their in-house team.
How to Reduce Prior Authorization Delays
A consistent process can help medical practices manage prior authorization requests and avoid preventable delays. These steps can make the process easier for your staff:
- Keep payer-specific checklists. Record the prior authorization requirements for your most common health plans to help staff prepare requests correctly.
- Organize supporting documents. Keep required medical records, referral details, and other supporting information ready before submitting a request
- Track every request. Use a shared tracker or practice management software to monitor submission dates, pending decisions, and follow-up tasks.
- Identify urgent requests. Clearly flag time-sensitive requests and follow the payer's process for expedited review when applicable.
- Follow up with payers. Confirm receipt, check request status, and respond to requests for additional information promptly.
- Review recurring issues. Keep track of common delays and missing documents so your team can improve its process over time.
These steps can help practices stay organized and keep authorization requests moving without adding unnecessary work to the front desk.
Should Medical Practices Outsource Prior Authorization or Manage It In-House?
A prior authorization virtual assistant can support routine administrative tasks, including tracking requests, organizing documents, and following up with payers. With a virtual assistant for prior authorization, practices can get additional help managing requests without adding these tasks to their in-house team’s workload.
Factor | In-House Team | Additional Administrative Support |
Cost | Includes staff salaries, benefits, and training | Depends on the support arrangement and service hours |
Workload | Existing staff handle requests alongside other duties | Helps distribute routine authorization tasks |
Request Volume | Staff capacity may become a challenge during busy periods | Additional support can help manage higher workloads |
Follow-Up | Handled by the practice’s own team | Can be coordinated with dedicated support staff |
Practices with frequent authorization requests or limited front-desk capacity may benefit from additional administrative support. Smaller practices with manageable request volumes may prefer to keep the process in-house.
The goal is to choose an approach that helps your team manage requests consistently while keeping patient care and other essential responsibilities on track.
Is Prior Authorization Work Overwhelming Your Medical Staff?
Conclusion
Prior authorization can be prospective, concurrent, retrospective, urgent, or tied to specific services such as medications, procedures, imaging, equipment, and specialty care. Requirements and review timelines vary by health plan.
Before care is provided, verify the payer’s current requirements, submit the required clinical records, and track each request through its decision. Check approval dates carefully; authorization does not guarantee final claim payment.
Frequently Asked Questions
A prior authorization list shows which services, medications, or procedures require approval under a specific health plan. Medical practices can usually find these lists on the payer's provider website or portal. Check the latest requirements before scheduling a service because coverage rules can change.
Requirements vary by health plan, but certain specialty medications, biologics, and GLP-1 medications may require prior authorization. Some brand-name drugs may also need approval when lower-cost alternatives are available.
No. Prior authorization does not guarantee final payment. The patient's coverage must remain active, and the service must match the approved request. Other plan requirements and claim details may also affect payment.
There is no single validity period for every authorization. Some approvals cover one service or visit, while others remain valid for several weeks or months. Check the approval notice for the effective and expiration dates before providing the service.
Patients can generally appeal a prior authorization denial. Providers may also be able to submit an appeal or request reconsideration on a patient's behalf, depending on the health plan's rules and any required authorization. Check the denial notice for appeal instructions and deadlines.
Dr. Shane Wilson
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