A patient arrives for a 99214 follow-up on a Thursday. Her card was scanned in January, the batch eligibility check on Tuesday came back "active", and the front desk collected a $30 copay. Six weeks later the claim denies with CO-22, coordination of benefits: she took a new job in March, her husband's plan is now primary, and nobody asked. The billing team spends forty minutes finding out, the claim goes to the other payer past its filing deadline for secondary, and the $30 copay was the wrong amount anyway.
Nothing in that story required new software. It required a different question at check-in and a place to record the answer. Most eligibility denials come from checking the wrong thing or not recording what was checked. A patient with active coverage can still produce a denial if the plan is out of network, the service needs prior authorization, the coverage was terminated between scheduling and the visit, or another payer should have been billed first.
This article is the workflow we ask practices to run: three checkpoints, a short list of what to capture, a script for failures, and two numbers that tell you whether it is working.
Key takeaways
- Check at three moments: scheduling for new patients, two to three days before every visit, and check-in for anything that changed.
- "Active" is not enough. Capture plan and product, network status for the rendering provider, patient responsibility, authorization and referral requirements, and coordination of benefits.
- Record the date, source and initials of every verification in the coverage record, so a later denial can be traced to a payer error, a coverage change or a missed check.
- Give the front desk a script and the authority to act on failures two days out. A failure discovered at check-in is a rescheduled visit or a write-off.
- Measure two numbers: the share of visits with a documented pre-visit verification, and eligibility denials as a share of all denials.
When to check
| Moment | Who | What is checked | On failure |
|---|---|---|---|
| At scheduling (new patients) | Scheduler | Plan accepted; rendering provider and location in network for that product | Offer an in-network provider or a self-pay estimate before booking |
| Two to three days before the visit (everyone) | Front desk or eligibility clerk | Coverage active on the date of service; benefits; authorization and referral needs; other coverage | Call the patient; resolve or reschedule before the visit |
| At check-in | Front desk | New card, new employer, new address, anything changed since the last visit | Re-verify in real time; collect the corrected copay |
The middle checkpoint does most of the work. Batch eligibility through the clearinghouse or payer portals two to three days out, and flag failures for a call. Two days leaves time to reach the patient; the morning of the visit does not. A new patient scheduled with an out-of-network provider is a denial booked three weeks in advance, which is why the first checkpoint exists at all.
What to capture
An eligibility response (the 271 transaction that comes back from a 270 inquiry) is more than "active". Record, in the patient's coverage record:
- Plan name and product type (HMO, PPO, Medicare Advantage, Medicaid managed care, marketplace).
- Whether the rendering provider and the location are in network for that product.
- Copay for the visit type, remaining deductible, coinsurance and out-of-pocket status.
- Whether the planned service requires prior authorization or a referral, and the number if one exists.
- Coordination of benefits: is there another payer that should be primary? Medicare secondary payer rules deserve a specific question at every Medicare visit.
- The date and source of the verification and who performed it.
The last line is the one practices skip, and it is the one that matters when a claim denies. If the record shows a verification on the 14th from the payer portal by a named person, the denial is either a payer error you can appeal quickly with that evidence or a change in coverage the patient is responsible for. If the record is missing, nobody can tell, and the practice absorbs it.
What to do with failures
An inactive or unverifiable response two days before the visit is a phone call, not a surprise at check-in. Give the front desk a script and the authority to act:
- Call the patient and ask for current insurance information.
- If the patient has new coverage, verify it before the visit and update the coverage record.
- If there is no coverage, offer a self-pay estimate and, where appropriate, a financial hardship process.
- If the service is non-covered under the plan, obtain the appropriate waiver so the patient can be billed.
- Reschedule only when none of the above resolves the problem, and document why.
The authority matters as much as the script. A front desk that has to ask a manager before offering a self-pay estimate will stop calling.
Prior authorization deserves its own checklist
For procedures, imaging, infusions and some specialist referrals, verify whether authorization is required, obtain it before the service, record the authorization number with its valid dates and units, and make sure the claim carries the number. Authorizations that expire mid-treatment or that cover fewer units than performed are a common and entirely preventable denial. The scheduling template needs a field for the number; a free-text note does not reach the claim.
Build a procedure list by payer that flags what needs authorization. It does not have to be complete on day one. Start with the ten highest-dollar services you perform and the three payers you bill most, and add to it every time an authorization denial teaches you something.
Specialty differences and the January reset
Primary care is high volume and low dollar; batch eligibility handles most of it, and the human effort goes to new patients and plan changes. Specialists and surgical practices have fewer visits, higher dollars and more authorizations, so the authorization checklist belongs in scheduling and units and dates get confirmed before each procedure. Behavioral health has carve-outs: the medical plan on the card may not be the payer for behavioral services, so confirm the behavioral benefit and its administrator. In pediatrics, newborns may not yet be on the policy; confirm enrollment before the first well visit claims go out. For telehealth, coverage and place-of-service rules vary by payer and state, so verify the telehealth benefit specifically.
Plan changes cluster at the start of the year. Expect eligibility failures to roughly double in January and February, add front-desk time for it, and re-verify every patient's coverage at their first visit of the year even if the card looks the same. Deductibles reset too, so patient responsibility rises sharply and the collection script at check-in matters more in the first quarter than at any other time.
Measure it, and connect it to the money
Two numbers: the percentage of visits with a documented verification before the visit, and eligibility denials as a share of all denials. When the first goes up, the second goes down within a month or two. Add authorization denials as a third number if your specialty performs many authorized services.
Eligibility denials are cheap individually and expensive in aggregate. Take a practice with 2,000 claims a month, a five percent denial rate and 40 percent of denials eligibility-related: that is about 40 eligibility denials a month, or 480 a year. If each takes 25 minutes to research and rework, that is 200 hours of billing staff time a year, and some share of those claims become write-offs when the patient cannot be reached or the secondary payer's filing limit has passed. At an average $140 per claim, a 15 percent write-off rate on those denials is about $10,000 a year lost, before counting the staff time. A workflow that removes most of them pays for the front-desk time within weeks, and the same workflow raises point-of-service collections because copays and deductibles are known before the patient arrives.
Questions we hear
Can the clearinghouse do this automatically?
Most clearinghouses offer batch eligibility that runs against the next few days of appointments. It handles the "active or not" question well. It does not usually answer the network, authorization and coordination of benefits questions, which still need a person for the visits where they matter. Use the batch to sort the schedule into "clear" and "needs a look", not as the whole workflow.
Who should own the workflow?
The front desk lead, with the billing team reporting eligibility denials back to them every month. The two teams should look at the same numbers. Practices that Revelrex bills receive this workflow as part of onboarding for medical billing, and eligibility denials are one of the categories reported monthly under denial management.
What about same-day and walk-in visits?
Run a real-time eligibility check at check-in, capture the same fields, and accept that network and authorization questions get a shorter look. Same-day visits are a small share of the schedule in most practices; the goal is that they are the only visits without a pre-visit check, and that the check-in verification is still recorded with date, source and initials.
What to do this week
- Pull last month's denials and count how many were eligibility or coordination of benefits (CO-22, CO-27, CO-31, CO-109). That is your baseline.
- Confirm the batch eligibility run is scheduled two to three days ahead of every appointment, and that someone owns the failure list each morning.
- Add the six capture fields, especially verification date, source and initials, to the coverage record or the pre-visit checklist.
- Write the failure script with your front desk lead and agree what they may offer without asking a manager.
- Add the two measures to the monthly report and put the January re-verification rule on the calendar now, before the plan changes arrive. If you want the front end reviewed first, an RCM audit starts there.
