case study

One Out of Network Claim, Traced From Session to Check

Follow a single fifty minute session through documentation, a month end superbill, a client submission, adjudication and an explanation of benefits, all the way to money in a client's account.

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Filed under case study in The Reimbursement Desk, the working notebook behind SuperbillDesk.

The Session: What Gets Documented on the Day

The process starts in the therapy room. After a fifty minute session, the therapist or counselor records specific details in the client's chart. At a minimum, this includes the date and duration of the appointment, the type of service provided, and clinical notes that support the diagnosis and treatment plan. Most mental health professionals use an electronic health record or a paper progress note for this step.

For out of network reimbursements, certain pieces of information are essential. The therapist selects one or more CPT codes to describe the service, for example, 90834 for a standard psychotherapy session. The ICD-10 code or codes for the client's diagnosis are also entered. These codes must match what will appear on the superbill and ultimately on the insurance claim.

Many payers require the therapist's license information, National Provider Identifier (NPI), and often their tax ID or Social Security Number. All of this is collected and checked at the time of service. In most cases, payment is collected from the client at the end of the session, since out of network providers do not bill insurance directly.

Keep reading: How Parity Rule Changes Are Reshaping Out of Network Practice

Month End: The Superbill Leaves the Practice

When the calendar month closes, the therapist prepares a superbill for each client who will seek out of network reimbursement. The superbill is a summary document that lists all billable sessions for the month, including dates, CPT codes, diagnosis codes, provider details, and total charges. It must be accurate and complete, or the payer will likely deny the claim.

Some therapists create superbills manually, pulling information from session notes and practice management systems. Others use software to automate the process. The superbill is typically delivered to the client via secure email, client portal, or printed hard copy. The client needs this document to start the insurance claim process.

Errors here can cause long delays. A missing diagnosis code or the wrong CPT code will almost always result in a denial. The best practice is to check the document against session notes and confirm all claims information matches the payer's requirements before sending it out.

Submission: Payer Portal, Claims App, or Paper Form

Online Portals

Most major insurers now allow clients to submit out of network claims online. The client logs in to the payer's portal, uploads the superbill, and fills in demographic and payment information. Some portals ask for a scanned superbill, while others accept PDFs directly from email attachments.

Submission online typically triggers an automatic confirmation message. The process is faster than mailing a claim, but any issues with the uploaded document, such as missing signatures or unreadable scans, can still derail adjudication.

Claims Apps and Third-Party Services

Some clients use third-party claims apps. These services prompt the user to upload the superbill, then fill out and submit the required forms on their behalf. This can save time but adds another layer where data entry errors or misinterpretation of codes can occur.

Paper Submission

Some insurance plans, especially smaller or regional carriers, still require paper claims. The client completes a claim form, attaches the superbill, and mails it to the address on the insurance card. Paper submissions take longer to process and are more prone to errors like missing pages or illegible handwriting.

In all cases, the claim is now with the insurance payer and the waiting begins. The length of this wait can vary widely, from a couple of weeks to more than a month, depending on the insurer's processes and the completeness of the documentation.

Keep reading: The Month End Billing Close for a Solo Therapy Practice

Adjudication: Allowed Amount, Deductible, and Coinsurance

Once received, the payer reviews the claim. This is called adjudication. The insurance company checks several things: whether the service is covered under the client's plan, whether the codes and documentation match their requirements, and whether the provider is eligible. If a form is missing or a code is invalid, the claim is denied or delayed for more information.

For eligible claims, the insurer determines the "allowed amount", the maximum rate they pay for the service, which is usually less than the therapist's full fee. The insurer also checks whether the client's deductible has been met. If not, some or all of the allowed amount is applied to the deductible, and the client may receive little or no reimbursement.

After the deductible, the insurer applies coinsurance, which is the client's share of costs, often 20 to 40 percent for out of network services. Only the remaining portion is reimbursed. For example, if the allowed amount for a $180 session is $110, and the client has a 30 percent coinsurance, the insurer pays $77, and the client receives that amount back.

The Explanation of Benefits Arrives Before the Money

Before any money changes hands, the insurance company sends an Explanation of Benefits, or EOB. This document explains what was billed, what was allowed, what was applied to the deductible, and what portion is reimbursed. The EOB can arrive by mail or be posted to the client's online insurance portal, usually a few days or weeks before the actual payment arrives.

The EOB is not a bill, but it is a crucial record. It shows the client and the therapist what was accepted, what was denied, and why. Sometimes the EOB notes that more information is required, or it details a partial denial with a code indicating the reason, such as "invalid CPT code" or "missing provider credential."

Clients often have questions at this stage, especially if the reimbursement is lower than expected. Many therapists find themselves fielding calls about how the insurer calculated the payment or why a session was not covered. The EOB provides the answers, but translating the codes and payer language can be time-consuming.

See how SuperbillDesk handles this for mental health

The Check or Direct Deposit and Who It Is Made Out To

For out of network claims, reimbursement almost always goes directly to the client, not the therapist. The payment arrives by check in the mail or, if the client has registered for electronic funds transfer, as a direct deposit into their bank account. The therapist is not part of the payment process at this stage, though some clients bring the check to their next session to pay outstanding balances.

The name on the check is usually the primary policyholder, even if the therapy was for a dependent. If there are issues with the client's mailing address or bank details, payment can be delayed. Some clients forget to sign up for direct deposit, which adds a few more days as paper checks are processed and mailed.

In rare cases, the insurer may accidentally send payment to the provider, especially if the therapist's tax ID is on file from previous in-network work. Most practices return these checks to the client or endorse them as appropriate, but this can create confusion and require additional paperwork to correct.

When It Goes Wrong: The Appeal and the Second Submission

Not every claim is approved the first time. Common denial reasons include mismatched diagnosis or CPT codes, missing provider information, or lack of coverage for the service. The EOB will usually explain the reason with a code or a short sentence. When this happens, the client or their therapist must review the documentation, correct any errors, and prepare an appeal or a corrected claim.

The appeal process varies by insurer, but it often involves writing a short letter, attaching new or corrected documentation, and resubmitting the claim. Some payers have online appeal portals, while others require mailed forms. The wait begins again, often with a new thirty or sixty day clock for review and payment.

For therapists, this is an added administrative burden. Tracking which claims have been denied, which are under appeal, and which have been paid can take significant time. Some practices keep detailed spreadsheets or use software to monitor claim status. In the meantime, clients may be frustrated by the slow reimbursement process, and the therapist may need to field more questions or help interpret payer responses.

Automation has helped reduce errors and speed up corrections. Modern software platforms can generate superbills with all required CPT and diagnosis fields pre-filled, reducing the risk of missing information. Some systems even track which claims have been submitted and flag those needing follow-up. This can make resubmission faster and less prone to mistakes.

Out of network reimbursement can be unpredictable, but careful documentation, accurate superbills, and prompt appeals can shorten the timeline. Tools that automate superbill generation and delivery, ensuring all codes and client details are correct, now play a vital role in making this process smoother for therapists and clients alike.

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