HW HCPCS Level II modifier: Funded by state mental health agency
HW is a HCPCS Level II modifier: “Funded by state mental health agency.” It adds this detail to the code it is reported with.
Official description
HWFunded by state mental health agency
Short description: State mntl hlth agncy funded
HCPCS · United States
Medicare details
The indicators CMS publishes with HW in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Added
- Jan 1, 2003
Where HW sits
- 1GroupHCPCS modifiers
- 2Modifier HWFunded by state mental health agency
Source and release
- Data release
- HCPCS Level II · October 2026
- Effective date
- Oct 1, 2026
- Publisher
- CMS
This page is built from the HCPCS Level II catalog that Vero Codes reads when it suggests codes: Centers for Medicare & Medicaid Services’s October 2026 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does HCPCS code HW mean?
HW is the HCPCS code for “Funded by state mental health agency” in CMS’s HCPCS Level II October 2026 release.
Where is HW in the HCPCS Level II list?
HW is listed under Modifiers.
Does Medicare cover HW?
CMS lists HW’s Medicare coverage as “Not payable by Medicare”. Coverage and payment still depend on the patient, the setting, the documentation and the payer.
Which HCPCS Level II release does this page use?
It uses CMS’s October 2026 release, in effect from Oct 1, 2026 to Dec 31, 2026. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside HW
All modifiersHQGroup settingHRFamily/couple with client presentHSFamily/couple without client presentHTMulti-disciplinary teamHUFunded by child welfare agencyHVFunded state addictions agencyHXFunded by county/local agencyHYFunded by juvenile justice agencyHZFunded by criminal justice agencyJ1Competitive acquisition program no-pay submission for a prescription numberJ2Competitive acquisition program, restocking of emergency drugs after emergency administrationJ3Competitive acquisition program (cap), drug not available through cap as written, reimbursed under average sales price methodology