UnitedHealthcare Prior Authorization and Eligibility Verification Guide

A claim can pass every coding check you own and still come back denied. The reason is usually dull. Nobody confirmed the patient's coverage before the visit, or nobody asked whether the procedure needed approval first.

If you bill UHC, those two checks decide how much revenue actually lands in your account. This UnitedHealthcare prior authorization and eligibility guide covers both, step by step, including the rule changes that took effect this fall. A2Z Billings has 150+ years of combined experience on its team, and this guide comes from the daily work of fixing UHC claims that should never have been denied.

Why do UHC denials start before the patient arrives

Most denials for coverage or authorisations share the same reason: the answer was known before the visit. The plan was already in the system. The list of requirements was online. Someone failed the check or checked the wrong thing.

It’s a lot more expensive to fix it later than to prevent it. If a claim is denied, it means rework, resubmission, possibly an appeal and weeks of waiting. Scheduling means none of that with a 5-minute check.

One number puts the situation into perspective. UHC says prior authorisation applies to about 2% of its medical services and that about 92% of requests submitted are approved. Approval is the usual outcome, so the costly mistake is not filing the request in the first place.

How to verify UHC eligibility, step by step

Eligibility verification confirms three things: the patient has active coverage on the date of service, which UHC plan they belong to, and what that plan pays for. Run it in this order.

1. Collect a copy of the front and back of the insurance card at scheduling, along with the subscriber's name and date of birth. The plan name printed on the card tells you which requirement list applies.
2. Run the check on the UHC Provider Portal, or submit a 270 eligibility request through your clearinghouse. Since 2012, HIPAA has required the 270/271 transaction pair, and most practice management systems already have it built in.
3. Please read the entire 271 response, not just the active/inactive flag. Look for copay, deductible, coinsurance, dates of coverage, or any other indicator of insurance.
4. Save to the patient's account along with the date you ran it.
5. If you are booked more than a few weeks out, run it again closer to the appointment.

This is where most practices take shortcuts (step three). The status flag simply means the plan is active. Whether you get paid depends on what else the response shows. When scheduling, obtain a copy of the front and back of the insurance card, including the subscriber’s name and DOB. The printed plan name on the card indicates which list of requirements applies: a second insurer that should pay first, a plan change in the middle of the year, or a termination date that falls inside a treatment series.

Know which UHC plan you are billing

UHC has many product lines, each with its own prior authorisation list. Commercial plans, Medicare Advantage and Dual Special Needs plans, Community Plans (Medicaid and long-term care), Individual Exchange plans, and regional entities such as UnitedHealthcare of the River Valley and UnitedHealthcare West have different requirements. A code that requires approval under one plan can proceed with no request under another.

Referrals are also based on plan type and are discussed in Chapter 6 of the 2026 UnitedHealthcare Care Provider Administrative Guide. Some Medicare Advantage plans assign prior authorisation to a provider group, so the number on the back of the ID card may belong to someone other than UHC. You dial the wrong number, and you lose a day.

How to check whether prior authorization is required

Don’t work off a PDF alone. UHC lists the requirements by plan type, but a list doesn’t tell you what codes may need approval, and this patient’s plan needs it today. That’s where the Prior Authorisation and Notification tool in the UHC Provider Portal comes in.

Check with the member first. UHC says this tool gives the most accurate response. The tool also returns a Decision ID and lets you submit the request in the same session when approval is required.

Emergency and urgent care do not require prior authorization on the commercial and Medicare Advantage lists. Everything else deserves a look. The lists also change on a rolling schedule: The Medicare Advantage list carried separate versions for June, July, and August this year, and the commercial list posted a September version. A cheat sheet you built in spring is already out of date.

What changed on October 1

UHC removed the prior authorisation requirement for nearly 1,700 procedure codes for its commercial, Medicare Advantage, Individual Exchange and certain Medicaid plans on Oct. 1. That is part of a pledge to reduce 30% of its remaining needs by the end of 2026. The codes affected are in the areas of cardiology, diagnostic imaging, genetic and laboratory testing, outpatient surgery, home health and orthopaedic and musculoskeletal procedures.

Orthopaedic practices got specific relief. Certain spine codes and elbow arthroplasty codes 24360-24363 no longer need approval under Medicaid plans in 16 states and the District of Columbia.

UHC also forecasts that by the end of 2026, more than 70% of its prior authorisation volume will be submitted electronically, in a standardised format. This change is occurring through portal submission. The good news is that there’s a catch. It eats hours. Your staff will keep asking for approvals that are no longer available. Or someone thinks everything was dropped, doesn’t ask for a code that was still on the list, and the claim is denied. This week, pull your 25 most billed procedure codes, compare them to the current lists, and rewrite your payer cheat sheet.

How to submit a request that gets approved the first time

Approval is mainly a paperwork exercise. Include the CPT or HCPCS code and diagnosis codes, the planned date of service and site of care, NPIs for ordering and rendering providers, and clinical notes to demonstrate medical necessity: symptoms, duration, test results, and treatments previously tried. First, clearly state if the patient has failed conservative care (e.g., physical therapy, medication) with dates.

Then follow up. Enter the decision ID and authorisation number in the patient account. Note the approved codes, units, date range and facility and place the authorisation number on the claim. "If you are approved for 12 visits, you don't have coverage for a 13th visit. If the planned procedure changes, change the request prior to the date of service, as the claim has to match what UHC approved.

Mistakes that cost practices the most

These patterns show up again and again in UHC accounts:

• Running eligibility at the time of billing instead of at the time of scheduling, which catches problems after the patient has left.
• Checking requirements by code instead of by member, so plan differences slip through.
• Approvals expire because nobody tracks end dates and unit counts.
• Missing the other insurer on the 271 response and billing UHC as primary is another issue.
• That means one sick day or resignation can break the process, because all of these details are in one employee’s head.