Em 9 percent wl
The 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
curl https://api.healthcare.dev/v1/codes/hcpcs/G9881 \ -H "Authorization: Bearer $HDEV_API_KEY"
{
"data": {
"code": "G9881",
"parent": null,
"status": "active",
"system": "hcpcs",
"display": "Em 9 percent wl",
"billable": true,
"attributes": {
"betos": "Y1",
"coverage": "C",
"action_code": "N",
"type_of_service": "1",
"pricing_indicator": "00",
"action_effective_date": "2018-04-01"
},
"description": "The 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",
"replaced_by": [],
"effective_end": null,
"effective_start": "2018-04-01",
"care_categories": [],
"care_category_details": []
},
"meta": {
"source": "cms-hcpcs",
"data_version": "2026-10"
}
}CMS attributes
Change history
G9881 has been in effect since 2018-04-01. This page shows HCPCS Level II release 2026-10.
Add as_of=YYYY-MM-DD to the request to get this code exactly as it was on a past date. The change feed (GET /v1/changes) lists what each release added, changed or retired across the whole dataset; a per-code change list isn't published yet.
Use it
curl https://api.healthcare.dev/v1/codes/hcpcs/G9881 \ -H "Authorization: Bearer $HDEV_API_KEY"
Using the healthcare.dev MCP server, look up HCPCS Level II code G9881. Tell me what it covers, whether it is active and since when, and any CMS attributes it has.
Source: CMS, release 2026-10. Public domain (D-series CDT codes excluded). Reference data, not medical or billing advice.