G0271 Medical Nutrition Therapy (HCPCS) Reimbursement

HCPCS Level II code G0271 captures a follow-up episode of medically necessary nutrition care: group medical nutrition therapy (MNT) reassessment and subsequent interventions after a second referral in the same calendar year due to a change in diagnosis, medical condition, or treatment regimen. Billed per 30 minutes for groups of two or more, the code recognizes additional hours for complex conditions such as renal disease. Nationally, this code matters because it documents continued, structured nutrition management that can affect care coordination, chronic disease outcomes, and payment for interdisciplinary services.

Key payers covered in this review include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the code’s clinical intent and service setting, typical billing considerations, and an overview of common modifiers used with group MNT services. The publication also outlines benchmarking topics and policy updates relevant to coverage and documentation standards for repeat referrals and condition-related reassessments.

This summary serves clinicians, billing professionals, and policy analysts seeking clarity on when G0271 applies, how it differs from initial MNT visits, and what documentation and service characteristics are central for payer adjudication. Data not available in the input where applicable will be noted in detailed sections.

Billing Code Overview

HCPCS Level II code G0271 describes medical nutrition therapy, reassessment and subsequent intervention(s) following a second referral in the same year for a change in diagnosis, medical condition, or treatment regimen. The code covers group sessions (two or more individuals), billed in 30-minute increments and notes that additional hours may be needed for renal disease.

Service type: Medical nutrition therapy — group reassessment and intervention

Typical site of service: Outpatient clinic or community/group setting where group nutrition counseling and reassessment are provided

Clinical Context

A 58-year-old male with stage 3 chronic kidney disease and newly diagnosed type 2 diabetes mellitus is referred for medical nutrition therapy (MNT). The patient previously received an initial MNT session and a subsequent follow-up earlier in the year. Following a change in diagnosis (new insulin therapy) and worsening renal function requiring additional counseling time, the registered dietitian schedules a group reassessment visit with two other patients with similar renal and diabetes needs. The service provided is a group reassessment and subsequent intervention session of medical nutrition therapy billed in 30-minute increments under G0271 after the second referral in the same calendar year.

Workflow:

Referral received from the nephrologist documenting change in treatment regimen (initiation of insulin and adjustment for renal disease).
Medical record review and baseline assessment by the registered dietitian, including prior MNT notes, current medications, laboratory values (eGFR, potassium, A1c), and medication changes.
Scheduled 30-minute group reassessment visit (G0271) with two or more individuals covering individualized renal-focused dietary modifications, carbohydrate-counting for insulin dosing, and care coordination with the referring provider.
Documentation includes reason for the second referral in the same year, specific reassessment findings, individualized intervention provided, time spent (documented in 30-minute units), and participant attendance for group billing.
Coding and billing recorded with G0271 and appropriate modifier(s) reflecting place of service or unusual circumstances as indicated by payer rules.

Coding Specifications

Modifier	Description	When to Use
`11`	Physician/Practitioner is billing as the usual practitioner	Use when billing practitioner is the primary or usual provider of the service and payer asks for this modifier.
`22`	Increased procedural services	Use when the reassessment required substantially greater work or time beyond typical expectations and documentation supports increased complexity.
`23`	Unusual anesthesia — medically necessary, patient not willing/able to tolerate local	Rare for MNT; use only if an unusual sedation/anesthesia circumstance occurred and payer requires modifier for anesthesia-related billing.
`52`	Reduced services	Use when the group session was started but significantly reduced in scope or time compared to the billed unit.
`53`	Discontinued procedure	Use when the group reassessment was started but discontinued due to patient intolerance or adverse event.
`54`	Surgical care only	Generally not applicable to MNT; include only if payer systems require for encounters tied to surgical global periods.
`55`	Postoperative management only	Generally not applicable; use if MNT is billed separate from surgical care in a postoperative-only context.
`56`	Preoperative management only	Rarely applicable; use if nutrition counseling is preoperative-only and payer requires separation.
`62`	Two surgeons	Not typically used for MNT; include if billing system requires for dual-provider encounters involving nutritional procedures.
`78`	Return to operating room	Not applicable to MNT; include only if required by payer in exceptional workflows.
`80`	Assistant surgeon	Not applicable but listed when an assistant is present and billing rules require designation.
`82`	Assistant surgeon (when qualified resident not available)	Not applicable to MNT; used when an assistant without resident involvement is required.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist	Use when the service was performed by an advanced practice clinician and payer requires identification of the non-physician practitioner.
`QK`	Medical direction of two, three, or four CRNAs/Anesthetists	Not applicable to MNT; include if payer system requires certain anesthesia modifiers on related claims.
`QX`	CRNA service with medical direction by physician	Not applicable to MNT; included only when anesthesia services are present.

Taxonomy Code	Specialty	Notes
`253G00000X`	Registered Dietitian Nutritionist	Primary provider specialty for MNT and reassessment services.
`208D00000X`	Nephrology	Referring specialty for renal-disease-focused MNT; involved in diagnosis and treatment changes.
`208000000X`	Internal Medicine	Common referring specialty managing diabetes and chronic conditions requiring MNT.
`207L00000X`	Endocrinology	Common referrer for diabetes-related insulin regimen changes prompting MNT reassessment.
`363A00000X`	Nurse Practitioner	Advanced practice clinicians who may provide or co-manage MNT services in some settings.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`E11.9`	Type 2 diabetes mellitus without complications	Common indication for MNT to manage glycemic control and education on insulin initiation and dosing.
`N18.3`	Chronic kidney disease, stage 3 (moderate)	Renal disease increases MNT time needs for individualized dietary modifications (protein, potassium, phosphorus).
`N18.4`	Chronic kidney disease, stage 4 (severe)	Advanced CKD often requires additional counseling time and adjustments in nutrition therapy; specifically referenced in `G0271` for additional hours.
`E10.65`	Type 1 diabetes mellitus with hyperglycemia	Diabetes with glycemic instability can prompt reassessment and intervention of MNT when insulin regimens change.
`E11.65`	Type 2 diabetes mellitus with hyperglycemia	Indicates need for intensified nutrition education and dose titration around insulin changes.
`E83.39`	Other disorders of phosphorus metabolism and phosphatases	Electrolyte and mineral disturbances in renal disease can require targeted MNT interventions.
`R73.9`	Abnormal glucose, unspecified	Elevated glucose tests or prediabetes findings that trigger reassessment and additional nutrition therapy.
`Z71.3`	Dietary counseling and surveillance	General code indicating the reason for nutrition counseling and often used as an adjunct diagnosis for MNT services.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`97802`	Medical nutrition therapy; initial assessment and intervention, individual, face-to-face with the patient, each 15 minutes	Often used for the first MNT visit; precedes `G0271` when an initial individual assessment was performed earlier in the year.
`97803`	Medical nutrition therapy; re-assessment and intervention, individual, face-to-face with the patient, each 15 minutes	Individual reassessment analog to `G0271`; used when reassessment is provided on an individual rather than group basis.
`97804`	Medical nutrition therapy; group (two or more individuals), each 30 minutes	Alternative group MNT code often used for initial group sessions; `G0271` specifically covers reassessment after a second referral in the same year.
`99401`	Preventive medicine counseling, individual, approximately 15 minutes	May be used for brief counseling components in multidisciplinary settings; complements MNT education.
`99070`	Supplies and materials (e.g., patient education materials) provided by the physician over and above those usually included with the office visit	Used to bill separately for educational or monitoring materials provided during the MNT session when payer allows.

OpenPayer

Summary & Overview

HCPCS G0271: Medical Nutrition Therapy Group Reassessment