MCMCB Pro
G9878

G9878Two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 7-9 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 7-9

HCPCSActiveBETOS Y1

G9878 is a HCPCS Level II code for two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 7-9 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 7-9. It belongs to the Procedures and Professional Services (Temporary) section. Whether Medicare pays it depends on the coverage rule below.

Medicare coverage: Carrier judgment

Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.

From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.

Physician fee schedule statusX

Statutory exclusion. The item or service is not within the statutory definition of 'physician services', so the fee schedule never pays it.

Global period: XXX

Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.

The CMS record for G9878

Long descriptor
Two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 7-9 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 7-9

The official wording. This is what the code means.

Short descriptor
2 em core ms mo 7-9 wl

CMS's 28-character form, which is what shows up on a remittance advice.

Added
April 1, 2018

When CMS introduced the code.

BETOS
Y1

Berenson-Eggers Type of Service — CMS's own analytic grouping.

Pricing indicator
00 — Not priced by Part B

Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.

Codes adjacent to G9878

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If G9878 is not quite right, the correct code is very often within a few positions of it.

  • G9869Receipt and analysis of remote, asynchronous images for dermatologic and/or ophthalmologic evaluation, for use only in a medicare-approved cmmi model, 10-20 minutes
  • G9870Receipt and analysis of remote, asynchronous images for dermatologic and/or ophthalmologic evaluation, for use only in a medicare-approved cmmi model, more than 20 minutes
  • G9871Behavioral counseling for diabetes prevention, online, 60 minutes
  • G9873First medicare diabetes prevention program (mdpp) core session was attended by an mdpp beneficiary under the mdpp expanded model (em). a core session is an mdpp service that: (1) is furnished by an mdpp supplier during months 1 through 6 of the mdpp services period; (2) is approximately 1 hour in length; and (3) adheres to a cdc-approved dpp curriculum for core sessions
  • G9874Four total medicare diabetes prevention program (mdpp) core sessions were attended by an mdpp beneficiary under the mdpp expanded model (em). a core session is an mdpp service that: (1) is furnished by an mdpp supplier during months 1 through 6 of the mdpp services period; (2) is approximately 1 hour in length; and (3) adheres to a cdc-approved dpp curriculum for core sessions
  • G9875Nine total medicare diabetes prevention program (mdpp) core sessions were attended by an mdpp beneficiary under the mdpp expanded model (em). a core session is an mdpp service that: (1) is furnished by an mdpp supplier during months 1 through 6 of the mdpp services period; (2) is approximately 1 hour in length; and (3) adheres to a cdc-approved dpp curriculum for core sessions
  • G9876Two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 7-9 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 did not achieve 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 7-9
  • G9877Two 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 did not achieve 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
  • 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
  • G9880The mdpp beneficiary achieved at least 5% weight loss (wl) from his/her baseline weight in months 1-12 of the mdpp services period under the mdpp expanded model (em). this is a one-time payment available when a beneficiary first achieves at least 5% weight loss from baseline as measured by an in-person weight measurement at a core session or core maintenance session
  • G9881The mdpp beneficiary achieved at least 9% weight loss (wl) from his/her baseline weight in months 1-24 under the mdpp expanded model (em). this is a one-time payment available when a beneficiary first achieves at least 9% weight loss from baseline as measured by an in-person weight measurement at a core session, core maintenance session, or ongoing maintenance session
  • G9882Two medicare diabetes prevention program (mdpp) ongoing maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 13-15 under the mdpp expanded model (em). an ongoing maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 13 through 24 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 maintained at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at an ongoing maintenance session in months 13-15
  • G9883Two medicare diabetes prevention program (mdpp) ongoing maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 16-18 under the mdpp expanded model (em). an ongoing maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 13 through 24 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 maintained at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at an ongoing maintenance session in months 16-18
  • G9884Two medicare diabetes prevention program (mdpp) ongoing maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 19-21 under the mdpp expanded model (em). an ongoing maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 13 through 24 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 maintained at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at an ongoing maintenance session in months 19-21
  • G9885Two medicare diabetes prevention program (mdpp) ongoing maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 22-24 under the mdpp expanded model (em). an ongoing maintenance session is an mdpp service that: (1) is furnished by an mdpp supplier during months 13 through 24 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 maintained at least 5% weight loss (wl) from his/her baseline weight, as measured by at least one in-person weight measurement at an ongoing maintenance session in months 22-24
  • G9886Behavioral counseling for diabetes prevention, in-person, group, 60 minutes

Questions about G9878

What is HCPCS code G9878?

G9878 is a HCPCS Level II code for two medicare diabetes prevention program (mdpp) core maintenance sessions (ms) were attended by an mdpp beneficiary in months (mo) 7-9 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 7-9. It sits in the Procedures and Professional Services (Temporary) section.

Does Medicare cover G9878?

The CMS HCPCS file marks G9878 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.

How is G9878 paid under the physician fee schedule?

G9878 carries PFS status code X. Statutory exclusion. The item or service is not within the statutory definition of 'physician services', so the fee schedule never pays it.

HCPCS Level II2026Q3-Jul· effective July 1, 2026