Automated prior authorization software handles most of the document work in a prior authorization: reading everything, pulling the clinical records, assembling the packet and sending it, and sorting the payer’s response. Software designed to automate prior authorization, however, doesn’t make the payer’s determination.
And for many medical prior authorizations, the submission still ends with a fax or the payer portal. While many vendors claim to automate a majority of the process, few explain what happens after the submission. Here, we explain what parts of the prior authorization process can be automated—and what can’t, what many vendors won’t tell you, and how to evaluate potential vendors and the ROI.
Key Takeaways
- A majority of prior authorization tasks can be automated including classifying documents, extracting details, assembling packets, routing payer responses, and filing records.
- Automated prior authorization software doesn’t make the payer’s determination or replace a full prior authorization platform.
- When evaluating a potential solution, leaders should ask about which payers are electronic for their payer mix, what happens to payer responses that arrive by fax, and which clinical document types the solution classifies, among other questions.
Which Parts of the Prior Authorization Process Can Be Automated?
While many solutions claim to automate prior authorization, none can handle everything. Some areas of the process can only be automated in part, or not at all, and will still need human judgment.
| Step in the prior auth process | What automation can support | What still needs humans |
|---|---|---|
| Intake | Classify incoming documents. | Confirm prior authorization requirements andpayer rules. |
| Prepare | Organize records and assemble thePacket. | Review records and clinicalJustification. |
| Submit | Send through a supported channel, such as fax. | Use payer portals when needed. |
| Track | Record activity and flag follow-up. | Contact the payer and resolve requests. |
| Process response | Classify, capture configured details, and route. | Review exceptions and decide next steps. |
| Determine orappeal | Organize documents | The payer decides; clinicians handle appeals. |
Where Most “Automation” Meets Its Limits
Prior authorization workflows still vary by payer and submission channel. Electronic transactions can handle part of the process, but they don’t remove every document, portal, fax, or follow-up task.
Electronic prior authorization standards including X12 278, FHIR APIs, and pharmacy NCPDP ePA, cover only part of medical prior authorization volume.
According to X12’s summary of 2025 CAQH Index, fully electronic X12 authorizations represented 38% of volume—not the entire share of all prior authorizations handled electronically.
While payer portals are touted as an automation tool, practices still need a staff member (or a bot from another tool) to log into each portal.
Something else to consider are the public reporting deadlines for the CMS Interoperability and Prior Authorization Final Rule (CMS-0057-F).
The rule obligates payers to implement FHIR prior authorization APIs, respond to expedited requests within 72 hours and to standard requests in 7 calendar days.
Impacted payers were required by January 1, 2026 to implement certain operational provisions. API development and enhancement requirements generally begin January 1, 2027. Some eligible providers also have an electronic prior authorization reporting measure beginning in 2027, but they don’t have to purchase automation software to stay compliant.
Prior authorization automation doesn’t solve everything—payer portals and fax are still very much a part of the process. Most of the time, vendors are making a claim based on their best-connected payers. The reality is much different when you look at your payer mix. When evaluating potential vendors, therefore, be sure to ask about their percentage per payer.
The Half Most Vendors Skip: The Payer’s Determination
Another area that many vendors skip is the prior authorization workflow and ownership. Approvals, denials, and requests for additional information often arrive as faxes or letters and land in a shared queue. Nothing is classified until someone looks at it. Delays aren’t necessarily because the payer is slow to respond, but because no one realizes that a determination has been received.
Automated prior authorization software should classify documents and route them to the right place and owner.
Once the payer’s response is received, it’s automatically classified and lands in a workspace. With prior authorization automation, approvals are routed to scheduling, denials to appeals, and those that are more information needed are sent to the owner who has to answer it. All of the authorization details—number, dates, payer and procedure codes—are extracted and filed.
| Response type | Where it goes | Details to capture |
|---|---|---|
| Approval | Route to the PA team or the next-step owner, such as scheduling. | Authorization number, approved service, effective dates, and any limits. |
| Denial | Route to the PA team for review and, if appropriate, the appeals workflow. | Denial reason, decision date, authorization or request reference. |
| More information needed | Assign to the prior authorization owner or the clinician responsible for providing the requested information. | What information is requested, response deadline, authorization or request reference. |
Where Human Judgement Remains in the Prior Authorization Workflow
The majority of healthcare leaders agree that certain parts of the prior authorization process should still require human judgment.
When asked about what should always receive human review, more respondents cited prior authorization than EHR updates (43% vs. 22%) our 2026 Healthcare Document Workflow Automation survey found. These findings demonstrate that the administrative steps around prior authorization draw less resistance than the decision to automate.
Research shows that leaders are concerned about the effect AI will have on prior auth. According to the 2025 AMA prior authorization physician survey, 6 in 10 providers are concerned that AI increases— or will increase—prior auth denial rates.
But the determination always originates and stays with the payers. Automation doesn’t determine medical necessity, predict an outcome, or recommend a denial.
With your automation vendor, it’s imperative that you have the capability to set the confidence thresholds, allow staff to work exception queues, and stay in the loop where humans matter.
4 in 10 healthcare leaders say prior authorization decisions should always include human review—Documo 2026 Healthcare Document Workflow Automation Report
How To Evaluate Automated Prior Authorization Software
When you’re searching for a solution to automate prior authorization, there are areas to consider and a list of questions to ask your potential vendors. These help practices understand what the tool automates, where payer-specific workflows remain, and what work still falls to staff. Here are some:
- Which payers are truly electronic for my payer mix, and what percentage go by fax or portal? Submission usually ends with fax or a payer portal so you want to know upfront what that will look like.
- Who logs into payer portals: the software or my staff? Your staff should always remain in control of the payer portal to read determinations.
- What happens to payer responses that arrive by fax? Ideally, they should be routed to a dedicated workspace and assigned an owner.
- Which clinical document types does the solution classify out of the box (radiology, labs, operative reports, notes, etc.)? Since documents arrive altogether in batches, you need a solution that can separate prior authorizations, referrals, patient intake packets, and everything else.
- Does it write back to my EHR, or export a PDF someone re-files?
Exporting PDFs to re-file creates more work for your staff. Filing to the EHR is one of the most significant benefits of automation so be sure to prioritize vendors that offer it. - What’s the exception path when confidence is low? The solution should flag low-confidence or unmatched documents for staff to review.
- Does any part of the product influence or predict determinations? A solution automates document handling around prior authorization. The payer always makes the coverage determination.
- How long is rollout, and what does it require of my team? While deployment can vary depending on the vendor, the ideal length of time should be within 4 weeks or less.
How to Estimate the ROI of An Automated Prior Authorization Software
Once you have a shortlist of potential vendors and you’re looking to estimate the ROI on a given solution, there is a list of metrics to consider. Some include:
- Number of monthly inbound prior authorization-related pages
- Manual minutes per document
- The number of pages per document
- FTE hours per year
Eye Associates for New Mexico, a multi-location practice made up of 15 clinics on NextGen used Documo’s Intelligent Document Processing (IDP) to drive efficiency with its referral and inbound document intake workflows. This is the same classification, matching, and routing engine that’s used to handle prior authorization workflows. Their team was onboarded in just 4 weeks and ahead of the original timeline. With Documo, the organization’s per-document handling time was reduced from ~4 minutes to 90 seconds.
Want to estimate your potential savings? Calculate it now with our ROI calculator.
Where Documo Fits Into Prior Authorization Workflows—and Where It Doesn’t
Documo’s automated prior authorization software for payer responses allows prior authorizations to move so staff can save time and patients can get the care they need in a timely manner.
What Documo does: the solution handles inbound classification and data extraction, routes payer responses, files them to the EHR, and assembles outbound packets with cover pages over fax or API.
What Documo doesn’t do: the solution doesn’t log in to payer portals, connect to payer systems, or make or influence determinations. It also doesn’t replace a prior authorization platform. Rather, it sits underneath it and handles the document traffic it was never built for.
To see how much time your team can save with Documo’s prior authorization software, add your data to our ROI calculator.
Frequently Asked Questions
Can prior authorization be fully automated?
While most prior authorization processes can be partly or fully automated, not everything can. For example, payer’s determination and clinical justification are not covered by automation and still require human judgement.
Does automated prior authorization software replace fax?
No, the software automates fax, but most payers still rely on it.
Can it push approval and denial documents into my EHR chart?
Yes, when the EHR write-back exists. Documo’s EHR integrations include NextGen, ModMed, PointClickCare, Athena Health, eClinicalWorks, and others.
