A patient may arrive on time, provide an insurance card, and appear to have active coverage, yet the claim can still come back unpaid. The problem may be a terminated policy, an incorrect payer, an unmet deductible, an excluded service, a coordination-of-benefits issue, or a procedure that required prior authorization.
This is why the medical billing eligibility verification procedure is so much more than just checking if a patient has an insurance coverage. Eligibility verification is an important pre-service step for physicians, hospitals and clinics to help determine if coverage is active, what benefits are available to the planned service, what the patient may owe, and whether any additional payer requirements need to be met prior to treatment.
A more streamlined approach for checking eligibility and benefits in medical billing can help eliminate needless denials, improve conversations with patients about finances, identify the need for authorization sooner, and make sure that providers are sending in claims to the correct payer.
Under HIPAA administrative simplification standards, electronic eligibility inquiries and responses are generally handled through the ASC X12N 270/271 transaction. CMS explains that the transaction allows providers to request information about an enrollee’s eligibility and coverage, while health plans use the response to return relevant benefit information.
This guide covers how to verify coverage, what information providers should verify, how to link eligibility with CPT and ICD-10-CM coding, and what claim denials may occur when verification is inadequate or inaccurate.
What Is Eligibility Verification in Medical Billing?
Eligibility verification is the process of confirming a patient’s health insurance status and applicable benefits before medical services are provided or, when necessary, before a claim is submitted.
During medical insurance verification, a physician practice, hospital, or clinic may need to confirm:
- Whether the patient’s insurance is active
- The effective and termination dates of coverage
- The correct payer and insurance plan
- Whether the provider is in network
- Whether the scheduled service is covered
- Deductible amounts and remaining deductible
- Copayment requirements
- Coinsurance amounts
- Out-of-pocket responsibilities
- Referral requirements
- Prior authorization or precertification requirements
- Coverage limitations
- Visit or benefit limits
- Coordination of benefits
- Primary and secondary insurance
- Medicare or Medicaid eligibility, when applicable
Under CMS eligibility operating standards, health plans must give real-time access to certain eligibility information. This includes deductibles, copayments, coinsurance, coverage for specified types of services, and appropriate in-network or out-of-network information.
However, an active eligibility response should not automatically be interpreted as a guarantee that every service will be paid. Coverage and reimbursement can still depend on medical necessity, authorization, coding, provider network status, frequency limitations, documentation, payer policy, and other claim-adjudication requirements.
Why Is the Eligibility Verification Process in Medical Billing Important?
For providers, eligibility errors frequently become revenue-cycle problems after the patient has already received care.
Imagine a patient who is going to have an MRI. It may be that the patient’s insurance plan is activated but that does not mean that the MRI can be done and billed promptly. The plan may demand prior authorization, only cover imaging at select facilities, have a deductible, or not cover the ordered service under the patient’s particular benefits.
If those details are discovered only after the claim is submitted, the provider may face a denial that could have been prevented during pre-service verification.
An effective insurance verification process for healthcare providers supports several areas of the revenue cycle.
Fewer Coverage-Related Claim Denials
Eligibility verification can identify inactive or terminated coverage before the date of service. It can also help prevent claims from being submitted to an incorrect insurer.
Better Patient Financial Estimates
Confirming deductibles, copayments, coinsurance, and benefit limitations gives practices better information for discussing expected patient responsibility.
Earlier Identification of Prior Authorization Requirements
Some procedures, diagnostic studies, medications, therapies, and other services require authorization before they are performed.
Eligibility and benefits verification provides an opportunity to identify those requirements early enough to complete the payer’s authorization workflow.
More Accurate Coordination of Benefits
When patients have more than one insurance plan, providers need to determine which payer should be billed first.
Failure to establish the correct primary payer can result in avoidable denials and delayed reimbursement.
Improved Scheduling Decisions
For elective or non-emergency services, discovering a coverage issue before the appointment gives staff and patients time to resolve incorrect insurance information or payer requirements.
Eligibility Verification vs. Benefits Verification
Although the terms are frequently used together, eligibility and benefits are not exactly the same.
Eligibility verification answers a fundamental question:
Is the patient’s insurance coverage active for the relevant date of service?
Benefits verification goes further:
Does the patient’s plan include benefits relevant to the particular service being considered, and what financial or administrative conditions apply?
For example, an insurer may confirm that a patient’s policy is active. That does not automatically establish that bariatric surgery, physical therapy, an advanced imaging procedure, or another specific service is covered.
A complete health insurance eligibility verification process therefore should examine both policy status and service-specific benefits whenever possible.
How Does Electronic Insurance Eligibility Verification Work?
Electronic eligibility verification typically involves two standardized transactions:
| Transaction | Purpose |
|---|---|
| ASC X12 270 | Eligibility and benefit inquiry |
| ASC X12 271 | Eligibility and benefit response |
A provider, clearinghouse, or authorized system sends the 270 transaction requesting coverage information. The payer returns a 271 response containing available eligibility and benefit details.
CMS states that Version 5010 of ASC X12N 270/271 is the HIPAA-adopted standard for health plan eligibility benefit inquiries and responses.
The 270/271 process can help determine information such as active coverage, service-type benefits, deductible status, coinsurance, copayments, and certain plan limitations.
However, providers should review the actual response instead of treating a simple “active” result as complete verification.
The Eligibility Verification Process in Medical Billing: Step by Step
A reliable workflow should begin before the patient receives a scheduled service.
Step 1: Collect Accurate Patient Demographics
Verification starts with correct patient information.
Providers generally need:
Patient full legal name, date of birth, address when required, subscriber information, relationship to subscriber, member ID, group number, payer name, and insurance plan details.
Even small registration errors can cause an electronic inquiry to fail.
For example, an incorrect date of birth or member ID may cause the payer to report that the patient cannot be located even though valid insurance exists.
Step 2: Obtain Current Insurance Information
Providers should obtain current insurance details rather than relying indefinitely on information stored from an earlier visit.
Insurance coverage can change because of:
- Employment changes
- Annual enrollment elections
- Medicaid eligibility changes
- Medicare enrollment changes
- Employer plan changes
- Marketplace plan changes
- Marriage or divorce
- Dependent status changes
When possible, compare the patient’s insurance information with what is recorded in the practice management system.
Step 3: Confirm Policy Status
The next part of verifying insurance eligibility is confirming whether coverage is active for the expected date of service.
Check both effective and termination dates.
This distinction is important because a plan can exist in the patient’s record while no longer being active for the scheduled encounter.
Step 4: Identify the Correct Payer
Confirm that the claim should actually be submitted to the payer being verified.
This becomes especially important for patients with:
- Medicare and secondary coverage
- Employer insurance plus Medicare
- Medicaid managed care
- Workers’ compensation
- Automobile or liability coverage
- Multiple commercial plans
A claim sent to the wrong payer may be rejected or denied even when the service itself is covered.
Step 5: Confirm Provider Network Participation
Active patient coverage does not automatically mean that a particular physician, hospital, clinic, laboratory, or facility is treated as in network.
Providers should verify the applicable network when network status can materially affect coverage or patient responsibility.
This can be especially important when both a physician and facility are involved in the same episode of care.
Step 6: Check Service-Specific Benefits
The eligibility and benefits verification process in medical billing should evaluate coverage relevant to the patient’s planned service.
Depending on the encounter, benefit verification may need to address:
- Office visits
- Specialist visits
- Preventive care
- Diagnostic imaging
- Laboratory testing
- Surgery
- Mental health services
- Physical therapy
- Occupational therapy
- Durable medical equipment
- Home health
- Infusion services
- Telehealth
- Observation care
- Inpatient care
Do not assume that because one category is covered, another is automatically covered under the same terms.
Step 7: Determine Deductible, Copayment, and Coinsurance
Eligibility responses may provide important information about patient financial responsibility.
Deductible
The deductible is the amount a patient may have to pay before certain insurance benefits begin paying according to plan rules.
Practices should distinguish between the total annual deductible and the amount remaining when that information is available.
Copayment
A copayment is typically a fixed amount associated with a covered service category.
Different copayments may apply to primary care, specialty care, urgent care, emergency services, or other benefit categories.
Coinsurance
Coinsurance generally represents a percentage of the allowed cost for which the patient may be responsible after applicable plan requirements are met.
Patient responsibility should be estimated carefully because the final amount can change after payer adjudication.
Step 8: Check Prior Authorization and Referral Requirements
This step is particularly important for high-cost and specialty services.
A plan may require authorization for procedures such as:
- CT scans
- MRI studies
- Certain surgeries
- Specialty medications
- Infusion therapy
- Durable medical equipment
- Physical therapy
- Certain behavioral health services
- Selected outpatient procedures
Eligibility verification and prior authorization are separate processes.
Confirming coverage does not mean that required authorization has been obtained.
Similarly, prior authorization does not always ensure final payment on a claim as reimbursement is still subject to the claim, medical necessity, eligibility on the date of service, coding, paperwork, and payer requirements.
Step 9: Determine Whether a Referral Is Required
Some managed care plans require a referral from a primary care physician before the patient receives specialty services.
If a referral is required, confirm that it is valid for the applicable provider, service, number of visits, and date range.
Step 10: Review Benefit Limitations
Providers should look for service limitations such as:
- Annual visit limits
- Therapy limits
- Frequency restrictions
- Dollar limits
- Benefit maximums
- Age restrictions
- Site-of-service limitations
- Plan-specific exclusions
A service can be generally covered but still exceed a patient’s available benefit.
Step 11: Review Coordination of Benefits
When more than one insurer is involved, determine which policy is primary.
The provider should not assume payer order based only on the insurance cards presented by the patient.
Incorrect coordination of benefits may cause the payer to request processing information from another insurer or deny the claim until the correct payer order is established.
Step 12: Document the Verification
Good verification documentation creates a useful record for both staff and providers.
Document information such as:
- Date verification was completed
- Coverage status
- Effective dates
- Payer
- Plan name or type
- Deductible information
- Copay
- Coinsurance
- Authorization requirement
- Referral requirement
- Coverage limitations
- Verification method
- Electronic confirmation or reference number when available
- Representative name and reference number when verification was performed by telephone
Documentation can be especially useful when payer information later differs from what was available at the time of verification.
Medicare Eligibility Verification
Medicare eligibility deserves particular attention because Medicare has its own electronic eligibility infrastructure.
CMS maintains the HIPAA Eligibility Transaction System (HETS), which offers real-time Medicare beneficiary eligibility information via HIPAA-compliant 270 requests and 271 responses. CMS says HETS can be used to create accurate Medicare claims, calculate beneficiary liability, or check eligibility for specific treatments.
HETS is specifically associated with Medicare Fee-for-Service eligibility. CMS states that HETS should not be used to verify Medicare Advantage Part C or Medicare Part D coverage; inquiries for those programs follow their applicable plan or pharmacy eligibility channels.
As of May 11, 2026, CMS also requires third-party vendors submitting HETS eligibility requests to include an NPI associated with a current and valid HETS EDI enrollment agreement between the provider and vendor.
Doctors and clinics using third-party eligibility technology for Medicare should therefore make sure their enrollment and vendor arrangements remain current.
CPT Codes and Eligibility Verification
One important coding distinction is frequently misunderstood:
There is no universal CPT code that represents the routine act of checking a patient’s insurance eligibility.
Eligibility verification is primarily an administrative and EDI function rather than a separately reportable clinical service.
The CPT code becomes relevant because benefit verification should often be performed against the actual service that will eventually be billed.
For example:
| Service | Common CPT Example | Verification Question |
|---|---|---|
| New patient office visit | 99202–99205 | Is the physician/specialty visit covered? |
| Established patient office visit | 99211–99215 | What copay or coinsurance applies? |
| Preventive medicine visit | 99381–99397 | Is preventive care covered and are frequency rules satisfied? |
| Chest X-ray | 71045–71048 | Is diagnostic imaging covered? |
| CT chest | 71250–71275 | Is authorization required? |
| MRI brain | 70551–70553 | Does the plan require prior authorization? |
| Colonoscopy | 45378 | Is it preventive, diagnostic, or subject to cost sharing under the specific circumstances? |
| Physical therapy evaluation | 97161–97163 | Are therapy benefits available and is authorization required? |
| Therapeutic exercise | 97110 | Are there visit or authorization limits? |
These examples are not instructions to bill a particular code. CPT selection must always reflect the service actually documented and performed.
The value of knowing the anticipated CPT or HCPCS code during insurance verification is that many payer requirements are procedure-specific.
A payer representative may provide very different benefit information for a routine office visit than for an MRI, outpatient surgery, injectable drug, or DME item.
How ICD-10-CM and DX Codes Relate to Insurance Verification
Like CPT codes, ICD-10-CM diagnosis codes are not used simply to indicate that insurance eligibility was checked.
Diagnosis coding represents the patient’s documented condition, symptom, injury, preventive encounter, or other reportable reason for care.
However, diagnosis information can become highly relevant when verifying coverage because many payer policies evaluate the relationship between the proposed service and the patient’s diagnosis.
For example:
| Clinical Situation | Example ICD-10-CM Code |
|---|---|
| Essential hypertension | I10 |
| Type 2 diabetes mellitus without complications | E11.9 |
| Low back pain, unspecified | M54.50 |
| Pain in right knee | M25.561 |
| Screening mammogram encounter | Z12.31 |
| Screening for malignant neoplasm of colon | Z12.11 |
| General adult medical examination without abnormal findings | Z00.00 |
The appropriate DX code must come from the patient’s medical record. A diagnosis should never be selected merely because it improves the likelihood that an insurer will cover the service.
Providers should instead confirm whether the documented diagnosis satisfies applicable payer coverage and medical-necessity requirements.
This distinction matters because eligibility, coverage, and medical necessity are related but separate concepts.
Eligibility Does Not Equal Medical Necessity
A patient’s insurance may be active while a specific claim is still denied for medical necessity.
For example:
A patient has active insurance.
The payer confirms outpatient diagnostic benefits.
The patient undergoes a particular imaging study.
The claim is later denied because the payer’s coverage criteria were not satisfied by the clinical circumstances or documentation.
In this situation, eligibility was not necessarily the problem.
This illustrates why providers should treat the following as separate checkpoints:
Eligibility → Benefits → Authorization → Medical Necessity → Coding → Documentation → Claim Submission
Each step affects reimbursement independently.
For practices struggling to keep these checkpoints coordinated, working with an experienced organization such as Vermont Medical Billing, a trusted medical billing company in Vermont, can help create a more consistent front-end verification and claims workflow.
Common Eligibility-Related Claim Denials
Poor medical insurance verification can contribute to several recognizable denial patterns.
The exact CARC/RARC combination can vary according to payer and claim circumstances, but the following adjustment reasons are particularly relevant.
CARC 26 – Expenses Incurred Prior to Coverage
This adjustment may appear when the date of service occurred before the patient’s coverage became effective.
CMS’s published ANSI reason-code information describes CARC 26 as expenses incurred prior to coverage.
Potential prevention: Verify the insurance effective date against the scheduled date of service.
CARC 27 – Expenses Incurred After Coverage Terminated
This is one of the clearest examples of an eligibility-related denial.
It means that the expense occurred after the applicable coverage ended.
Potential prevention: Reverify eligibility close to the date of service instead of relying exclusively on old insurance records.
CARC 30 – Eligibility Requirements Not Met
CMS describes this code as an adjustment associated with required eligibility, spend-down, waiting-period, or residency requirements not being met.
Potential prevention: Review program- and payer-specific eligibility conditions instead of confirming only that an insurance ID exists.
CARC 31 – Patient Cannot Be Identified as Insured
This adjustment indicates that the payer cannot identify the patient as its insured member.
Possible causes include an incorrect member ID, inaccurate demographic information, name mismatch, wrong payer, or outdated insurance information.
CARC 22 – Coordination of Benefits
CARC 22 is associated with care that may be covered by another payer under coordination-of-benefits rules.
This can happen when the provider submits the claim to a payer that expects another insurer to process the claim first.
CARC 35/119 – Benefit Maximum Reached
Coverage can be active even when a particular benefit has been exhausted.
CMS’s published reason-code information associates these adjustment reasons with benefit maximums.
This is particularly important for services with visit or benefit limitations.
CARC 96 – Non-Covered Charges
CARC 96 identifies non-covered charges.
The denial does not necessarily mean that the entire insurance policy is inactive. The particular service or item may simply not be covered under the patient’s benefit plan.
CARC 109 – Incorrect Payer or Contractor
CARC 109 indicates that the claim is not covered by the payer or contractor receiving it and should be submitted to the appropriate payer/contractor.
Correct payer identification during eligibility verification can reduce this type of problem.
CARC 197 – Authorization or Precertification Absent
CMS’s published reason-code information identifies CARC 197 with absent precertification, authorization, notification, or pretreatment requirements.
This is an important reminder that eligibility verification should include authorization screening when relevant.
Eligibility Verification Denial Prevention Table
| Potential Issue | What to Verify Before Service |
|---|---|
| Coverage not yet effective | Policy effective date |
| Coverage terminated | Termination date |
| Patient not found | Name, DOB, subscriber ID, member ID |
| Incorrect payer | Current primary payer |
| COB denial | Primary and secondary payer order |
| Non-covered service | Service-specific benefits |
| Deductible surprise | Remaining deductible |
| Unexpected coinsurance | Service-level coinsurance |
| Out-of-network issue | Provider and facility network status |
| Authorization denial | Prior authorization requirements |
| Referral denial | Referral requirement and validity |
| Benefit exhausted | Visit and benefit maximums |
| Medical-necessity denial | Applicable payer coverage criteria and documentation |
How to Verify Insurance Coverage Correctly
Providers looking for how to verify insurance coverage before a patient visit should avoid relying on a single data point.
A stronger workflow uses multiple levels of confirmation.
First, verify that the patient’s insurance policy is active.
Second, verify the benefits relevant to the expected service.
Third, confirm network participation where applicable.
Fourth, review cost-sharing information.
Fifth, determine whether the service requires authorization or referral.
Sixth, determine whether benefit or frequency limitations exist.
Finally, document the verification result.
This approach makes health insurance eligibility verification for medical practices more useful than simply recording “active coverage.”
When Should Insurance Eligibility Be Verified?
Verification timing can depend on the service and payer, but practices often benefit from performing an initial check before the appointment and reverifying when circumstances could have changed.
Common checkpoints include:
At scheduling: Capture insurance information and identify obvious payer requirements.
Before the appointment: Confirm eligibility and relevant benefits.
On or near the date of service: Reverify when appropriate, particularly when significant time has passed since the original check.
Before expensive or scheduled procedures: Confirm benefits, authorization, network participation, and cost sharing at a more detailed level.
When insurance changes: Update and verify the new policy before claims are submitted.
Verification performed weeks in advance may not reflect coverage on the actual date of service.
Common Mistakes During Medical Insurance Verification
Checking Only Whether Coverage Is Active
“Active” is not enough.
Providers also need service-specific benefits when applicable.
Failing to Reverify Returning Patients
A long-term patient can still change insurers, employers, plan types, or benefit elections.
Ignoring the Effective Date
A policy may be active today but not have been active on the patient’s actual date of service.
Confusing Eligibility With Authorization
Eligibility verifies coverage status and benefit information.
Authorization represents payer approval or confirmation under a separate utilization-management process.
Assuming Authorization Guarantees Payment
Authorization does not replace correct coding, documentation, active eligibility, medical necessity, or other claim requirements.
Checking Only the Physician’s Network Status
Hospital-based and outpatient care can involve several entities.
Network implications may differ for the physician, facility, laboratory, imaging provider, anesthesiologist, or other involved providers.
Failing to Verify Secondary Insurance
Incorrect coordination of benefits can significantly delay claim processing.
Not Documenting Verification
A verbal conversation with an insurer is much less useful later if no reference number, date, representative name, or benefit details were recorded.
Insurance Verification for Hospitals
Hospitals often require a more extensive verification workflow because services can involve higher costs and multiple reimbursement structures.
Eligibility checks may be necessary for:
- Emergency services
- Outpatient procedures
- Inpatient admissions
- Observation services
- Surgeries
- Diagnostic imaging
- Infusion services
- Hospital-based physician services
Emergency care also involves separate federal and clinical obligations. Insurance verification procedures should never be used in a way that improperly delays legally required emergency screening or stabilizing treatment.
For scheduled hospital services, however, early benefit verification can help identify authorization, network, payer, and patient-responsibility issues before admission or treatment.
Insurance Verification for Physician Practices and Clinics
For physician groups and clinics, verification should ideally become part of the normal scheduling and registration workflow.
A practical workflow can be:
Appointment scheduled → Insurance information collected → Eligibility checked → Benefits reviewed → Authorization/referral requirements identified → Patient responsibility estimated → Clinical service provided → Claim coded and submitted
When these steps operate independently without clear communication, front-end problems often become back-end denials.
Can Eligibility Verification Prevent Every Denial?
No.
Even excellent eligibility verification cannot prevent every claim denial.
Claims can still be denied because of:
- Coding errors
- Missing modifiers
- Incorrect diagnosis coding
- Lack of medical necessity
- Insufficient documentation
- Untimely filing
- Duplicate claims
- Invalid provider information
- Authorization problems
- Bundling rules
- Payer-specific edits
The goal is not to eliminate every possible denial through eligibility checking.
The goal is to prevent denials that could reasonably have been identified before the service was provided.
Eligibility Verification and the Revenue Cycle
Eligibility verification sits near the beginning of the revenue cycle, but its effects continue through claim adjudication.
A coverage error discovered before an appointment may require only a few minutes to resolve.
The same problem discovered after claim submission can require eligibility research, payer calls, corrected claim submission, coordination-of-benefits updates, patient communication, and additional accounts receivable follow-up.
That difference explains why front-end accuracy can have a significant impact on the overall billing process.
Providers that need more structured support can also work with Vermont Medical Billing to strengthen insurance verification, eligibility workflows, claim submission, denial management, and other revenue-cycle processes while keeping clinical teams focused on patient care.
2026–2027 Coding Considerations
Eligibility verification itself is not tied to a particular annual CPT or ICD-10-CM code because it is an administrative insurance function.
However, the codes associated with the clinical services being verified must be current for the relevant date of service.
CMS has published the FY 2027 ICD-10-CM files, which become effective October 1, 2026, for applicable encounters through September 30, 2027.
Providers should therefore ensure that eligibility, authorization, medical-necessity, and claim workflows use the code set applicable to the actual date of service.
Using outdated diagnosis or procedure information during benefit research can produce inaccurate coverage conclusions.
Best Practices for a Strong Eligibility Verification Workflow
An effective verification process should be consistent rather than dependent on individual memory.
The strongest workflows generally include updated patient demographic information, current insurance details, electronic eligibility checks, service-specific benefit review, authorization screening, COB verification, patient responsibility review, and clear documentation.
Practices should also establish procedures for situations in which electronic eligibility information is incomplete.
For example, a payer portal may confirm active coverage without displaying sufficient information about a specialty procedure. In that situation, further payer verification may be appropriate instead of assuming coverage.
Final Thoughts
The eligibility verification process in medical billing is one of the earliest opportunities for healthcare providers to identify reimbursement problems before they become denials.
A complete verification process goes beyond asking whether insurance is active. Doctors, physicians, hospitals, and clinics should verify effective dates, service-specific benefits, provider network participation, deductibles, copayments, coinsurance, authorization requirements, referrals, benefit limitations, and coordination of benefits whenever they are applicable to the planned service.
The distinction between eligibility, benefits, authorization, medical necessity, and coding is especially important. Each represents a different part of the reimbursement process, and successful completion of one does not automatically satisfy the others.
When insurance verification is performed consistently and documented clearly, providers are better positioned to submit claims to the correct payer, identify patient responsibility earlier, prevent avoidable eligibility-related denials, and maintain a healthier revenue cycle.
Frequently Asked Questions About Eligibility Verification in Medical Billing
What is the eligibility verification process in medical billing?
The eligibility verification process involves confirming whether a patient’s insurance is active and reviewing applicable benefits, cost-sharing requirements, payer information, network considerations, authorization requirements, and coverage limitations before services are provided or claims are submitted.
What is medical insurance verification?
Medical insurance verification is the process healthcare providers use to confirm a patient’s insurance information and determine relevant coverage and benefit details.
How do providers verify insurance eligibility?
Providers may verify eligibility through payer portals, practice-management systems, clearinghouses, electronic 270/271 transactions, payer telephone systems, or authorized verification platforms.
What are the 270 and 271 transactions?
The ASC X12 270 transaction is an eligibility and benefit inquiry, while the 271 is the health plan’s eligibility and benefit response. CMS identifies 270/271 as the HIPAA-adopted electronic standard for health plan eligibility benefit inquiries and responses.
Is there a CPT code for eligibility verification?
Routine health insurance eligibility verification does not have a universal CPT code that providers bill simply for checking insurance.
CPT and HCPCS codes become relevant when a provider needs to verify whether a specific planned service is covered or requires authorization.
Does active eligibility guarantee claim payment?
No.
Active insurance confirms coverage status but does not guarantee reimbursement for every service. Claim payment can also depend on covered benefits, medical necessity, provider network status, prior authorization, diagnosis and procedure coding, documentation, payer rules, and other requirements.
What information should be checked during benefit verification?
Providers should review active coverage, effective dates, payer information, plan type, network status, deductible, copay, coinsurance, service-specific benefits, authorization requirements, referrals, benefit limits, exclusions, and coordination of benefits when applicable.
How often should patient eligibility be verified?
Verification should be performed frequently enough to confirm coverage for the relevant date of service. Many practices verify during scheduling and again closer to the appointment when appropriate, especially when significant time has passed or a costly procedure is involved.
What denial codes can indicate eligibility problems?
Potentially relevant CARCs include 26 for services before coverage, 27 for services after coverage termination, 30 for certain eligibility requirements, 31 when the patient cannot be identified as the insured, 22 for coordination-of-benefits issues, and 109 when the claim was sent to the wrong payer or contractor. The exact adjustment and remark codes depend on the payer and claim circumstances.
