What Is a Superbill? (Nutrition Visits Explained)

A superbill is an itemized, coded receipt a patient sends to insurance for out-of-network reimbursement. What it must include and when it gets paid.

By Javier Alvarez · Published September 29, 2026 · 5 min read

A superbill is an itemized, coded receipt that a provider gives a patient who paid out of pocket, so the patient can ask their own insurance plan for out-of-network reimbursement. It lists the same things an insurance claim does: who provided the care, what was done (CPT codes), why it was done (ICD-10 diagnosis codes), when, and how much was paid. But the patient files it, not the dietitian. If the plan pays, the money goes to the patient.

That's the whole idea. Most superbill problems come from forgetting that the patient is the one filing and the plan is the one deciding.

What a superbill must include

Insurers process a superbill using the same data fields as a standard professional claim (the CMS-1500; see NUCC's 1500 instructions). If a field the plan needs is missing, the patient gets a letter asking for it, or a denial. For a nutrition visit, include:

About you (the provider)

Full name and credentials (for example, "Jane Doe, MS, RDN, LD"), practice name, address and phone
Individual NPI (Type 1), plus the practice's Type 2 NPI if you bill through an entity (NPI Type 1 vs. Type 2)
Tax ID. Use an EIN, not your Social Security number, since the document leaves your hands.
State license number, if your state licenses dietitians

About the patient

Full legal name, date of birth and address, matching the insurance card
The plan's member ID (helpful, even though the patient files the claim)

About the visit

Date of service
Place of service: 11 for your office, 10 for telehealth in the patient's home, 02 for telehealth somewhere else
CPT code and units. For MNT that's 97802 for the initial assessment and 97803 for follow-ups, in 15-minute units (units calculator)
ICD-10 diagnosis codes that support the visit, with the primary one first. See ICD-10 codes for dietitians.
A telehealth modifier, if the plan uses one (often 95)
The referring provider's name and NPI, if the plan requires a referral

About the money

Your charge for each line, the total, the amount paid, the payment date and method, and a zero balance due
Your signature, or a statement that the information is accurate

Our free superbill template has every field above in one page, with current ICD-10 codes.

How the patient submits it

Before the first visit, the patient calls their plan and asks: Do I have out-of-network benefits for nutrition counseling (CPT 97802/97803) with my diagnosis? What's my out-of-network deductible, and how much of it have I met? What percentage do you reimburse, and of what amount? Do I need a referral? Our benefits verification checklist has the full list of questions.
After the visit, you give them the superbill and a receipt.
The patient files it: usually a member claim form from the plan's portal with the superbill attached, or an online upload where the plan offers one.
The plan sends the patient an EOB showing the allowed amount, what went to the deductible, and any payment.

Remind patients to check the plan's deadline for member-submitted claims. It varies by plan, and a pile of superbills sent in December can miss it.

When superbills don't get reimbursed

A superbill doesn't guarantee a payment. It's a request. The usual reasons the answer is "$0":

No out-of-network benefits. Common with HMO and EPO plans, which generally cover out-of-network care only in emergencies (plan types explained).
The out-of-network deductible isn't met. The plan "processes" the claim, credits it to the deductible, and pays nothing. That's normal, and the claim still counts toward the deductible.
Nutrition counseling isn't a covered benefit for that diagnosis, or the plan covers it only as a preventive benefit with specific codes. See preventive vs. medical benefits.
The diagnosis doesn't support the service. A lone BMI code or a vague counseling code with no condition behind it is a frequent problem; see Z68 BMI codes and Z71.3.
Missing identifiers. No NPI, no tax ID, or a name that doesn't match the card.
Visit limits already used, or a required referral that isn't on file.

The plan pays a percentage of its allowed amount, not of your fee. A patient who paid $150 may get back much less than they expected, even when everything is approved. Tell them this in writing before they book.

Superbill rules that protect you

Give a good faith estimate. Under the No Surprises Act, providers must generally give uninsured or self-pay patients a good faith estimate of costs when they schedule care in advance or ask for one (CMS). A superbill patient is paying you directly, so plan on giving an estimate.
Don't hand superbills to in-network patients. Your contract generally requires you to file the claim and collect only the member's cost share.
Be careful with Medicare patients. Medicare MNT has its own rules on enrollment, referrals and who files the claim. Read the Medicare MNT billing guide before offering a Medicare beneficiary a superbill.
Code what you documented. A superbill is a billing document. If a plan asks for records, the note has to support the codes and units exactly as they would for a claim you filed yourself.

Superbill or claim?

For your practice, the real question is whether to stay cash-pay with superbills, go in-network, or run a mix. The trade-offs are who does the work, who carries the risk and what patients end up paying, and we cover them in superbill vs. insurance claims. The money side is in cash-pay vs. insurance: the real math, and collecting cost share from in-network patients is in copays, coinsurance and deductibles.

Sources

Sources checked September 29, 2026. Payer rules change; verify the member's benefits.

Frequently asked questions

What is a superbill in simple terms?

A superbill is an itemized receipt with billing codes. After a patient pays you directly, you give them a document with your NPI and tax ID, the date of service, the CPT code and units, the ICD-10 diagnosis and the amount paid. The patient sends it to their insurance plan to ask for out-of-network reimbursement.

Is a superbill the same as an insurance claim?

No. A claim is filed by the provider, usually electronically, and the insurer pays the provider. A superbill is given to the patient, who files it with their own plan and gets any reimbursement themselves. The superbill carries the same information a claim does, but the provider isn't the one filing it.

Will insurance reimburse a superbill for nutrition counseling?

Only if the patient's plan has out-of-network benefits that cover nutrition counseling for their diagnosis. Even then, the plan usually applies an out-of-network deductible and pays a percentage of its own allowed amount, not your full fee. HMO and EPO plans often have no out-of-network benefits. The patient should call their plan before the first visit.

Can a dietitian give a superbill to a patient whose plan she's in-network with?

Usually not. An in-network contract generally requires you to file the claim and collect only the patient's cost share. Superbills are for plans you aren't contracted with. Medicare patients are also a special case; see our Medicare guide before offering one.

How does a patient submit a superbill?

Most plans take a member claim form, available on the member portal or by phone, with the superbill attached. Some let members upload it online. The patient keeps a copy and proof of payment and should check the plan's deadline for member-submitted claims, which varies by plan.

Part of Superbills & cash pay. Start with Superbill vs. Insurance Claims for Nutrition Practices.