A client asks for a superbill and means something bigger. They hope the document will make insurance pay your full fee.

What is a superbill? It is an itemized record of the services you provided, with the codes and provider details a health plan needs to consider out-of-network reimbursement. You give it to the client. The client sends it to the plan. The plan decides what, if anything, comes back.

It is a useful document. It is not a promise.

What a Therapy Superbill Is, and What It Is Not

A therapy superbill is industry shorthand. It is not a form CMS named. Think of it as a detailed receipt: who you are, who the client is, what you did, the diagnosis, the date, and the fee.

The word gets used for two different jobs, which is why therapists end up asking what super billing even is. One job is the receipt you give the client so they can ask their plan for reimbursement. The other is a claim the practice files, sometimes while the client pays only a copay. If you submit the claim yourself, that is claim filing. If the client pays you and then sends the document, that is a superbill.

It is not the medical record. It is not a Good Faith Estimate, which is a cost estimate you give before care for clients who are uninsured or self-pay.^[5] And it is not a statement for a balance the client still owes the practice.

If you are in network, you usually submit a claim yourself. A superbill is the path for clients whose plan you do not bill directly. Many therapists use it while they are out of network on purpose, or while they are waiting on a panel, or for the one payer they never planned to join.

Here is the part to say out loud. The insurer reimburses the client, even if you are the person who handed over the document.^[2] Collect your fee at the visit.^[3] Their reimbursement can take weeks, and it may be less than your rate. If you wait on that check, you are waiting on money that was never coming to you.

A solo LPC in Minneapolis keeps a small private-pay caseload and one client with PPO out-of-network benefits. She collects the session fee on the card. Once a month she sends a superbill. She does not call that insurance billing. Contracting vs credentialing is a different decision: whether you join the panel and bill the plan yourself.

What Belongs on the Document

If a client asks what is a superbill, start with the fields below. Do not start with a promise about the check. Plans reject thin superbills for missing facts, not for mysterious clinical reasons.^[1] Superbill requirements are mostly identity, coding, and money.

Include your legal name, credentials, NPI, tax ID, practice address, and phone. Include the client's legal name as it appears on the card, date of birth, address, and member ID. A nickname or an old last name is enough to bounce the claim.

For each date of service, list the CPT code, units, a specific ICD-10 code, the fee you charged, and the amount the client paid. If you saw them four times, itemize four lines. A monthly total with no dates is not enough.

Add the place of service. Use 11 for an office visit. Use 10 when the telehealth client is at home. Use 02 when the telehealth client is somewhere else.^[4] Older guides still say every video session is POS 02.^[1] That instruction is out of date, and it can change what the plan allows.

A therapist in St. Paul printed POS 02 on every superbill because the sessions were video. Most of those clients were at home. The code for that location is 10. One field, wrong on every page.

What Out-of-Network Reimbursement Usually Looks Like

Ask the client to call the plan before the first session. The questions are simple. Does this plan pay out-of-network mental health care? What is the deductible? What is the coinsurance? Is there a session limit? Many HMO plans, and plenty of EPO plans, have no out-of-network benefit at all. A superbill cannot create one.

If the benefit exists, the plan usually applies the out-of-network deductible first. After that, it pays a percentage of its allowed amount.^[1] The allowed amount is the plan's number, not your fee. A $180 session can be priced at $110, and the plan may then pay 60 percent of that $110. The client should hear that before they are disappointed.

Processing often takes a few weeks. That is a common range, not a deadline you can promise. Say it that way.

A client in Rochester told her therapist she had "out-of-network coverage," which was true. The first two months of claims hit the deductible. The first reimbursement was a fraction of the fee. The conversation went better because they had already walked through copay and coinsurance in plain language, including the deductible piece, at the start.

You are not required to file the client's claim. A one-page note on how to submit, and what the EOB might show, prevents a lot of tense emails.

Coding Mistakes the Client Experiences as a Rejection

The ICD-10 on a superbill has to be a diagnosis the plan will consider, and it has to match the note. Z codes for relationship problems are a common miss. Many plans do not treat them as covered psychiatric treatment.^[1] If you have not talked with the client about the diagnosis, do that before they see it on a form they will upload.

Match the CPT code to the minutes. 90834 is 38 to 52 minutes of psychotherapy. 90837 starts at 53 minutes. A 45-minute session billed as 90837 is the kind of mismatch a plan, or an audit, can question. Family therapy has its own codes. Do not default every session to individual therapy because that is what the template says.

Names, dates of birth, and member IDs have to match the card. So does your NPI. Small differences cause a lot of rework.

A group practice in Duluth used one relationship Z code on every couples session, because that was the reason the couple called. Several clients submitted those superbills and got denials that felt personal. The fix was a coverage conversation, and a diagnosis that matched both the note and the benefit.

How to Offer This Without Losing the Week

Clients will ask what is a superbill again at the second session if the first conversation was vague. Decide the policy before someone is sitting in front of you. You can say: I collect my fee at the session. I will give you a therapy superbill once a month. Your plan may reimburse you for part of it, after your deductible, and the amount is up to them.

Generate the document from the note. Retyping CPT and diagnosis into a blank PDF is how the superbill drifts away from the chart. Monthly is fine if every date of service is its own line.

An Illinois group bills two commercial panels directly and sees everyone else as private pay. The superbills and the claims have to tell the same clinical story. Different paths, same codes, same dates. Discuss fees at the beginning so the superbill is not the moment a client first learns the charge or the diagnosis.

BreezyBilling does not pursue patient collections, and a superbill is not a collection tool. For the panels you have joined, we submit claims and post the payments. For balances the practice is actually billing, client statements are a different document from the one a client sends to a plan. A coordinator can help you keep those paths straight.

Final Thoughts

What is a superbill? It is the record a client uses to ask their plan for out-of-network reimbursement. It should be accurate, specific, and explained in advance. It will not bill the payer for you, and it will not set the size of the check.

If you want help checking out-of-network benefits, submitting the claims you are contracted to send, or sorting client statements from this kind of receipt, BreezyBilling is here to help.

Sources

Insurance and Superbills for Mental Health Therapists — Stillpoint, 2025
What Is a Superbill, and How Do I Put One Together? — GoodTherapy
How to Bill Out of Network — SimplePractice
Place of Service Code Set — Centers for Medicare & Medicaid Services
Understanding Costs in Advance — Centers for Medicare & Medicaid Services

What Is a Superbill, and When Does a Therapy Practice Need One?