Billing codes · CPT code

CPT 97802: the initial MNT assessment code

By Javier Alvarez · Updated September 28, 2026 · 6 min read

97802 is the first code on almost every nutrition claim a dietitian files. It is also where two avoidable problems start: units that don't match the note, and a second 97802 billed for a patient the payer already considers established.

This page covers what the code means, how to count units, what Medicare requires, and how commercial plans differ. For the side-by-side decision, see 97802 vs 97803.

What 97802 means in plain English

CPT describes 97802 as medical nutrition therapy, initial assessment and intervention, individual, face-to-face with the patient, each 15 minutes. Each part of that phrase matters on a claim:

• Initial assessment and intervention. It's the first MNT encounter: the full nutrition assessment plus the start of the intervention (the plan, the education, the goals).
• Individual. One patient. A group visit is 97804.
• Face-to-face. Time counts only while you are with the patient, in person or over live video. Charting, reviewing the referral before the visit, and messages afterward don't count.
• Each 15 minutes. It's a timed code, so you bill units, not "a visit."

Medicare's claims manual is blunt about sequence: 97802 is used only once, for the initial assessment of a new patient, and all later individual visits are billed as 97803 (CMS Claims Processing Manual, ch. 4, §300.4).

Units: minutes to 97802 units

Time-based CPT codes follow the midpoint rule: a unit is attained once you pass half of it. For a 15-minute code, the first unit starts at 8 minutes and each next unit 15 minutes later. State Medicaid manuals restate the same rule; North Dakota's is a clear example.

Two limits sit on top of the table:

• Payer caps. Some commercial plans cap units per visit or per year. A plan that pays 4 units pays 4 units for a 75-minute visit.
• Medicare MUE. In the CMS practitioner MUE table effective October 1, 2026, 97802 is capped at 12 units per day with adjudication indicator 2 (a per-day policy edit). Twelve units is 3 hours, which is also the entire first-year Medicare MNT allowance. MUE values change quarterly; check the current table before you rely on a number.

For the full walk-through of what time counts, see the 8-minute rule for dietitians.

Medicare rules for 97802

Medicare Part B covers MNT under NCD 180.1 and 42 CFR 410.130–410.134. The rules that decide whether a 97802 line pays:

• Covered conditions only. Diabetes, chronic renal insufficiency (GFR 15–59, not on dialysis), or the 36 months after a kidney transplant. The manual tells contractors to deny MNT claims without a diabetes or renal diagnosis.
• Physician referral with NPI. Only a physician (MD or DO) can refer. The referring NPI must be on the CMS-1500, and the MAC returns claims without it (§300.2).
• Hours. 3 hours in the first calendar year and 2 hours in each later year. Unused hours don't carry over, and each calendar year needs a new referral for follow-up hours.
• Who bills. A registered dietitian or nutrition professional enrolled in Medicare, who must accept assignment. Medicare pays MNT at 85% of the fee schedule amount, and it can't be billed incident-to a physician.
• Cost sharing. MACs such as Noridian list the deductible and coinsurance as waived for MNT.
• Not on the same day as DSMT. MNT and diabetes self-management training can't be billed on the same date for the same patient. See G0108 and G0109.

The full Medicare workflow, from enrollment to referral forms, is in the Medicare MNT billing guide.

Commercial payers: what changes

Commercial plans use the same code and the same units, but they set their own rules on almost everything else:

• What "initial" means. Some plans allow 97802 once per patient, some once per year, some once per episode. Ask the plan, and write the answer down.
• Covered diagnoses. Many plans cover far more than diabetes and kidney disease, including obesity, prediabetes, hyperlipidemia and eating disorders, and often through the preventive benefit. How the diagnosis is sequenced decides which benefit pays. See preventive vs medical benefits.
• Visit or unit limits. These vary by plan, not by carrier. The member's plan documents, not a blog post, are the answer.
• Referral. Not always required, but some plans or HMOs require one.

The fastest way to get these answers is a structured benefits call. Use the insurance verification call script and ask about 97802 by code.

ICD-10 codes that pair with 97802

The diagnosis tells the payer why MNT was needed. Common pairings:

Point each 97802 line to the diagnosis that supports it. A claim with the right codes in the wrong order can still route to the wrong benefit.

Telehealth: POS and modifiers

97802 is on the CY 2026 Medicare telehealth list, and registered dietitians are eligible distant-site practitioners. CMS's February 2026 telehealth FAQ says beneficiaries can receive telehealth anywhere in the U.S., including at home, through December 31, 2027.

For professional claims, CMS's MLN telehealth booklet tells you to use POS 10 when the patient is at home and POS 02 when they're somewhere else, and Medicare pays POS 10 at the non-facility rate. That booklet lists modifier 95 only for certain institutional claims, not for professional claims. Medicare Advantage and commercial plans often still ask for modifier 95. Follow each plan's telehealth policy, and when a MAC's instructions differ from this summary, follow the MAC. The details, including audio-only visits, are in Medicare telehealth for MNT in 2026.

Common 97802 denials and the fix

For the general playbook, see nutrition claim denials.

Example claim line (invented)

A new Medicare patient with type 2 diabetes, referred by her physician, joins a video visit from home. Face-to-face time is 58 minutes.

• CPT: 97802 × 4 units (58 minutes falls in 53–67)
• Diagnosis pointer: A → E11.9 (from the referral)
• POS: 10 (telehealth, patient at home)
• Referring provider: the physician's name and NPI in item 17/17b
• Hours used: 1 of 3 for this calendar year

Her next visit, four weeks later, is 97803, not 97802.