HCPCS Level II · Procedures and professional services (temporary)
G9879Two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 10-12 under the mdpp expanded model (em). a core maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 7 through 12 of the mdpp services period; (2) is approximately 1 hour in length; and (3) adheres to a cdc-approved dpp curriculum for maintenance sessions. the beneficiary achieved at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at a core maintenance session in months 10-12
Source: CMS HCPCS quarterly update, October 2026. Page updated September 29, 2026.
About G9879
G9879 is an HCPCS Level II code in the G series (procedures and professional services (temporary)), describing two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 10-12 under the mdpp expanded model (em). a core maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 7 through 12 of the mdpp services period; (2) is approximately 1 hour in length; and (3) adheres to a cdc-approved dpp curriculum for maintenance sessions. the beneficiary achieved at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at a core maintenance session in months 10-12.
It was added to HCPCS effective 04/01/2018.
Its Medicare coverage code is "C", meaning coverage is left to the Medicare contractor's judgment.
Details
- Short description
- 2 em core ms mo 10-12 wl
- Date added
- 04/01/2018
- Action effective
- 04/01/2018
- BETOS
- Y1
Related G98xx codes
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- G9806Patients who received cervical cytology or an hpv test
- G9807Patients who did not receive cervical cytology or an hpv test
- G9812Patient died including all deaths occurring during the hospitalization in which the operation was performed, even if after 30 days, and those deaths occurring after discharge from the hospital, but within 30 days of the procedure
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- G9818Documentation of sexual activity
- G9819Patients who use hospice services any time during the measurement period
- G9820Documentation of a chlamydia screening test with proper follow-up
- G9821No documentation of a chlamydia screening test with proper follow-up
- G9822Patients who had an endometrial ablation procedure during the 12 months prior to the index date (exclusive of the index date)
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Common questions about G9879
Is HCPCS G9879 still valid?
- Yes. G9879 is active in the CMS October 2026 HCPCS file.
Does Medicare cover G9879?
- Its coverage code is "C": coverage is left to the Medicare contractor's judgment. Check the local coverage determination for your region.