Prior Authorization Management

Prior authorization is a payer's approval step for certain services, drugs or procedures before they are performed. If the approval is missing or wrong, the claim may be denied even when care was appropriate. Tracking what each plan requires takes time and attention.

Outsourced prior authorization services take that work off clinical and front desk staff. Westmont Revenue Partners connects practices and facilities with vetted medical billing experts who check requirements, assemble documentation, submit requests and follow up until a decision arrives. A good prior authorization company also tracks approvals so they match what is later billed.

Who this is for

• Imaging, surgical and procedural practices with frequent authorization needs
• Specialists who prescribe or administer high-cost drugs and infusions
• Therapy and rehab providers working under visit limits and approvals
• Practices where nurses or medical assistants spend hours on payer calls
• Facilities scheduling inpatient or outpatient procedures
• Practices seeing denials for missing or expired authorizations

What's included

• Checking whether a service needs authorization for the patient's plan
• Gathering clinical notes, orders and supporting documents
• Submitting requests through payer portals, electronic transactions, fax or phone
• Tracking request status and following up on pending decisions
• Recording approval numbers, dates, units and limits
• Handling requests for more information from the payer
• Supporting peer-to-peer review requests with clinicians
• Managing appeals of denied authorizations
• Tracking expirations and extensions or renewals
• Matching authorization details to scheduled services and claims
• Keeping a record of payer-specific rules and forms

How it works

1. Your staff sends the order or scheduled service, with the patient's insurance and clinical details.
2. The authorization specialist confirms whether the plan requires approval for that service.
3. The specialist assembles the needed documents and submits the request the way the payer requires.
4. The request is tracked, and any payer questions are routed to your clinicians for response.
5. The decision is recorded in your system and communicated to scheduling and billing.
6. If denied, the team supports a peer-to-peer or appeal, as agreed in the scope.

Common challenges

• Rules that differ by payer and plan. Requirements change often and vary even within one insurer. Experienced teams maintain payer-specific checklists and re-check before each request.
• Incomplete clinical documentation. Missing notes lead to pends and denials. Specialists review what the payer asks for before submitting, and ask clinicians for missing items early.
• Delays that affect scheduling. Waiting for a decision can push back care. Specialists track pending requests and tell schedulers what is approved.
• Expired or mismatched approvals. An authorization may not match the date, code, provider or units later billed. Billers compare approvals against scheduled services to catch gaps.
• Retroactive needs. Urgent care sometimes happens before approval. Specialists know which payers have processes for urgent or after-the-fact requests and follow them.
• Peer-to-peer scheduling. Clinician time is limited. Staff prepare summaries and coordinate times so physicians can respond quickly.
• Changing payer technology. Portals and electronic options evolve. Experienced teams adapt, and watch regulatory changes affecting payers.

Metrics worth tracking

• Authorization denial rate: shows how often requests are not approved
• Claims denied for missing authorization: shows whether the process is catching requirements
• Pending request aging: shows how long requests sit without a decision
• Appeal overturn rate: shows how effective appeals are
• Procedures rescheduled due to authorization: shows effect on patient care
• Staff time spent on authorizations: shows workload relief

Codes and standards

Code or standard	Type	What it covers
278	EDI transaction	Electronic request and response for referral certification and authorization
CMS-0057-F	Federal rule	CMS interoperability and prior authorization final rule for certain payers, with provisions phasing in from 2026 and API requirements primarily from 2027
CPT (HCPCS Level I)	Code set	Procedure and service codes that authorizations are tied to
HCPCS Level II	Code set	Supply, equipment and drug codes that may also require approval
ICD-10-CM	Code set	Diagnosis codes that support medical necessity

Note

Codes and standards are examples for orientation, not a complete list, and do not guarantee coverage or payment. Always check current code sets and payer policy.

Specialties that use this service

• Radiology (Diagnostic)
• Imaging Centers
• Orthopedic Surgery
• Oncology
• Infusion Centers
• Physical Therapy
• Cardiology
• DME

How Westmont can help

• We match you with vetted experts who know authorization workflows in your specialty
• We look for providers comfortable with your major payers and portals
• We help you define scope, from request submission only to full appeal support
• We connect authorization work with eligibility and billing so approvals match claims

Frequently asked questions

What is prior authorization?

It is a payer's advance approval for a service, drug or procedure. The plan reviews the request, often against medical necessity criteria, and issues a decision. Which services need approval depends on the payer and the plan. Without required approval, a claim may be denied or reduced.

Does an approved authorization guarantee payment?

No. Approval generally means the plan agrees the service meets its criteria at the time, but payment still depends on active coverage, correct coding, the approved details and other policy terms. That is why it is important to compare the approval with the final claim.

Who decides which services need authorization?

Each payer sets its own list, and lists change. Medicare Advantage plans, Medicaid programs and commercial insurers all differ. Check current payer guidance or ask your prior authorization company to keep an updated reference by payer.

Can authorization work be outsourced without losing clinical input?

Yes. Specialists handle the administrative side, such as forms, submissions and follow-up, while clinicians still supply notes and respond to clinical questions. Good processes make that handoff quick and clear so physicians spend minutes, not hours.

Are payer authorization rules changing?

Federal rules such as CMS-0057-F aim to improve payer prior authorization processes, with dates running into 2026 and 2027, and some payers are updating their own policies. Rules and timelines change, so check current CMS and payer guidance rather than relying on a static summary.

Related services

• Eligibility & Benefits Verification
• Denial Management & Appeals
• Medical Revenue Cycle Management (RCM)
• Medical Coding & Coding Audits
• Claims Submission & Clearinghouse Management
• Radiology & Imaging Center Billing