What insurers look for on a dietitian superbill
Nutrition claims get denied for two predictable reasons: the plan cannot tell the visit was medical nutrition therapy rather than general wellness coaching, or the units do not match the time. A strong dietitian superbill fixes both. It shows your RDN credential, your state license where one applies (LD, LDN or similar), and your NPI. It lists a diagnosis the plan recognizes for nutrition care, such as diabetes, kidney disease or hyperlipidemia. And it reports each session with the correct MNT code and a unit count that adds up.
If a physician referred the client, include the referring provider’s name in the notes field. Several plans ask for it, and for Medicare it is required.
MNT, DSMT and counseling codes
| Code | What it covers | When to use it |
|---|---|---|
| 97802 | MNT initial assessment and intervention, per 15 min | The client’s first assessment with you |
| 97803 | MNT reassessment and intervention, per 15 min | Every follow-up, including visits in a new calendar year |
| 97804 | MNT group, per 30 min | Two or more clients in a group session, billed per person |
| G0270 / G0271 | Medicare MNT after a second referral in the same year | Extra individual or group time after a change in diagnosis or treatment |
| G0108 / G0109 | Diabetes self-management training | Only through an accredited DSMES program |
| 99401-99404 | Preventive counseling, 15 to 60 minutes | Risk-reduction counseling for people without a diagnosed condition, where the plan accepts it |
| S9470 | Dietitian visit | Commercial plans that ask for this HCPCS code instead of MNT codes |
| S9452 | Nutrition class, per session | Classes billed per participant where the plan recognizes it |
Counting 15- and 30-minute units
MNT codes are time-based, so the units on your superbill should mirror your note.
- 60-minute initial visit: 97802 x 4.
- 45-minute follow-up: 97803 x 3.
- 30-minute telehealth check-in: 97803 x 2.
- 60-minute group class: 97804 x 2 for each participant.
Count face-to-face time only; chart review and meal plan writing done after the client leaves are not billable units. Use 97802 for the very first assessment. Many payers, Medicare included, expect 97803 for every visit after that, even when the client returns in a new year.
Medicare MNT rules worth knowing
Medicare Part B covers medical nutrition therapy for beneficiaries with diabetes, chronic kidney disease not on dialysis, or a kidney transplant within the past 36 months. The treating physician must refer the patient. Coverage starts at three hours in the first calendar year and two hours in each later year, and additional hours are possible with a new referral when the diagnosis or treatment changes, which is when G0270 and G0271 come in. Medicare generally will not pay MNT and diabetes self-management training for the same patient on the same date, so schedule them on different days.
Medicare claims must come from an enrolled RDN, so Medicare clients should not be handed a superbill to file themselves. Use this template for commercial out-of-network claims and private-pay records.
Commercial plans and preventive counseling
Commercial coverage for nutrition varies widely. Some plans treat MNT like any other outpatient service; others limit it to certain diagnoses or a set number of visits each year, or require a referral or prior authorization. Diet counseling for certain at-risk adults is part of the ACA preventive services list, so some plans cover it without cost-sharing, often only in-network and sometimes under the 99401-99404 codes with modifier 33. Your client’s member services line is the only reliable source for their plan’s rules. When coverage falls short, many clients can still pay with HSA or FSA funds; see using a superbill for HSA and FSA.
Telehealth and place of service
Many dietitians now see clients by video. For sessions where the client is at home, most plans want POS 10, and for clients at another location, POS 02, typically with modifier 95. Medicare’s home-based telehealth rules have changed several times, so check current guidance before billing Medicare by video. Our guide to telehealth place of service codes has the details.
Documentation that holds up
- A nutrition assessment in ADIME or a similar format, with anthropometrics and relevant labs such as A1c, lipids or eGFR.
- The nutrition diagnosis, intervention and measurable goals.
- Start and stop times for every session.
- A copy of the referral when the plan or Medicare requires one.
- Progress at follow-ups, such as weight trend, glucose logs or diet recall changes.
How to fill in this nutrition superbill
- Enter your practice details, your name with RDN and license credentials, license number, NPI and EIN. The NPI field checks the check digit.
- Add the client’s details and their insurance carrier, member ID and group number.
- Enter diagnoses. Type a code or a few characters and the field suggests common nutrition diagnoses and fills in the description.
- Add one line per visit with the date, CPT code, modifier, place of service, diagnosis pointer, units and fee per unit. The line total multiplies units by fee automatically.
- Record the amount paid, type your signature, and note the referring provider if there is one.
- Review the checklist for missing fields, then Print / Save as PDF.
Create your nutrition superbill
Fill in the generator above and your client walks away with a clean, itemized superbill. Point them to how to submit a superbill to insurance for the next step. If you partner with lactation professionals on postpartum nutrition, see the lactation consultant superbill template.