Summary & Overview
HCPCS G9884: MDPP Two Ongoing Maintenance Sessions, Months 19–21
HCPCS Level II code G9884 documents two Medicare Diabetes Prevention Program (MDPP) ongoing maintenance sessions attended by an eligible beneficiary during months 19–21 under the MDPP expanded model. The code specifies that the beneficiary maintained at least 5% weight loss from baseline, verified by an in‑person weight measurement during that timeframe. Nationally, this code supports tracking long‑term MDPP engagement and outcomes for Medicare beneficiaries and aligns with CDC‑approved DPP maintenance curricula.
Key payers addressed include Aetna, Blue Cross Blue Shield plans, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the service represented by the code, typical sites of service, and payer relevance. The publication covers clinical context for MDPP maintenance sessions, coding mechanics for documenting sustained weight loss in the later MDPP period, and practical billing considerations such as common modifiers (data provided separately).
This analysis helps stakeholders understand how G9884 fits into MDPP service delivery and reporting, how payers incorporate MDPP maintenance services into coverage pathways, and what documentation elements are essential for claims that demonstrate continued beneficiary success (5% or greater weight loss) during months 19–21. Data not available in the input is noted where applicable.
Billing Code Overview
HCPCS Level II code G9884 describes two Medicare Diabetes Prevention Program (MDPP) ongoing maintenance sessions (MS) attended by an MDPP beneficiary during months 19–21 of the MDPP service period under the MDPP expanded model (EM). An ongoing maintenance session is an MDPP service furnished during months 13 through 24 of the MDPP services period, is approximately one hour in length, and adheres to a CDC‑approved DPP curriculum for maintenance sessions. The code indicates the beneficiary maintained at least 5% weight loss from baseline, as measured by at least one in‑person weight measurement at an ongoing maintenance session in months 19–21.
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Service type: MDPP ongoing maintenance sessions (two sessions in months 19–21)
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Typical site of service: In‑person MDPP maintenance session locations such as community or outpatient program sites that provide CDC‑approved DPP maintenance curriculum
Clinical & Coding Specifications
Clinical Context
A 58-year-old Medicare beneficiary diagnosed with prediabetes completed the initial and core modules of the Medicare Diabetes Prevention Program (MDPP) expanded model and entered the ongoing maintenance phase. During months 19–21 of the MDPP service period the beneficiary attended two in-person maintenance sessions, each approximately one hour, that followed a CDC-approved diabetes prevention program maintenance curriculum. At one of these sessions the beneficiary had an in-person weight measurement documenting sustained weight loss of at least 5% from baseline. The clinical workflow includes MDPP supplier scheduling of maintenance group sessions or individual sessions, an in-person weight check and brief behavioral counseling during the 60-minute session, documentation of attendance and weight measurement in the beneficiary’s MDPP record, and submission of the HCPCS Level II code G9884 for two MDPP ongoing maintenance sessions provided in months 19–21 under the MDPP expanded model.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | No modifier — standard claim submission | Use when no additional modifier applies to the MDPP service. |
22 |