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Nutrition and dietitian billing services

Nutrition billing turns on which diagnosis is on the claim and who referred the patient. Medical nutrition therapy codes 97802, 97803 and 97804 are timed in 15-minute units, Medicare covers them only for specific conditions with a physician referral, and commercial plans vary between a preventive benefit with no cost share and a limited visit allowance tied to medical diagnoses.

What makes nutrition billing different

Registered dietitian billing has a narrow code set and sharply different coverage rules by payer, which makes verification the whole game.

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  • Medical nutrition therapy is reported with 97802 for the initial assessment, 97803 for reassessment and 97804 for group sessions, each in 15-minute units, with the note documenting start and stop times and the intervention provided.
  • Medicare covers MNT only for diabetes, chronic kidney disease and the period after a kidney transplant, requires a treating physician referral, and limits hours per year, with G0270 and G0271 for additional hours after a change in condition.
  • Commercial plans often pay nutrition counseling as preventive under the Affordable Care Act when billed with Z71.3 and a preventive diagnosis, while the same visit with an obesity or diabetes diagnosis may face a deductible or visit limit.
  • Dietitians are not eligible to bill E/M codes, and diabetes self-management training under G0108 and G0109 requires an accredited program, so claims must stay within the MNT and counseling codes the payer recognizes for the dietitian's credential.

Denials we see most in nutrition

Every denial gets a root cause, a fix and a feedback loop, so the same denial stops coming back.

Diagnosis not covered

Medicare denies MNT for diagnoses outside diabetes, kidney disease and transplant, and some plans exclude obesity counseling. Core MB confirms coverage by diagnosis at verification and advises the practice on patient responsibility before the visit.

Missing physician referral

Medicare MNT and many commercial plans require a referral on file before the first visit. We obtain and store the referral, track its date and request renewals when the covered year resets.

Provider not credentialed

Many plans do not enroll dietitians individually or require a specific taxonomy. Core MB manages dietitian enrollment and determines where supervising physician billing is required instead.

How Core MB bills for nutrition

Core MB bills nutrition services from the counseling note, selecting the code and diagnosis that reflect the visit and the payer's coverage rules, and tracking Medicare hours and referrals per patient. Dietitian credentialing and payer enrollment run in the same client portal. Credentialing for new providers runs in the same system, tracked live in your client portal.

  • Benefits are verified by diagnosis and by preventive versus medical coverage before the first appointment is scheduled.
  • Medicare MNT hours and referral dates are tracked per patient with G0270 or G0271 used when a documented change supports them.
  • Dietitian enrollment status is confirmed per payer so claims are billed under the right provider from the start.

Everything in the service

Core MB provides the complete billing cycle for nutrition practices and dietitian groups, from the first benefits check to the credentialing that makes each dietitian billable.

  • Insurance verification and eligibility checks
  • Charge entry and specialty-specific coding review
  • Claim scrubbing and electronic submission
  • Payer follow-up on every open claim
  • Denial management and appeals
  • Payment posting and reconciliation
  • Accounts receivable recovery
  • Patient statements and balance support
  • Monthly reporting you can read in five minutes
  • Provider credentialing and payer enrollment

Nutrition billing questions

How many units of 97802 or 97803 can we bill for one visit?

Units follow documented face-to-face time in 15-minute increments, so an hour-long initial assessment supports four units of 97802 when start and stop times are recorded. Medicare limits total MNT hours per year, so Core MB tracks units against that annual allowance and uses G0270 or G0271 only when a documented change in condition supports additional hours.

Why does the same nutrition visit pay differently depending on the diagnosis?

Many commercial plans cover nutrition counseling as a preventive benefit with no cost share when the primary diagnosis is Z71.3 or a related preventive code, but apply a deductible or a visit cap when the primary diagnosis is a medical condition. We verify both benefit paths before the visit and code to accurately reflect the encounter and the patient's situation.

Can our dietitian bill Medicare for a patient with prediabetes or obesity alone?

No, Medicare MNT coverage is limited to diabetes, chronic kidney disease and the period following a kidney transplant with a physician referral. Patients with prediabetes or obesity alone are not covered for MNT under the dietitian's own billing. Core MB identifies these patients at verification so the practice can discuss self-pay or other programs before the visit.

How do we get started with Core MB for nutrition billing?

Complete the quote form with your payer mix, number of dietitians and software. We plan a transition that runs new claims alongside your current billing so there is no gap in collections, and credentialing or payer enrollment for your dietitians can start at the same time through the same portal.

Nutrition billing built on verified coverage

Core MB verifies benefits by diagnosis, tracks Medicare MNT hours and referrals, and enrolls dietitians with payers for nutrition practices across the country.