H0035 HCPCS Level II code: Mental health partial hospitalization, treatment, less than 24 hours
H0035 is the HCPCS code for “Mental health partial hospitalization, treatment, less than 24 hours” in CMS’s October 2026 release, in effect from Oct 1, 2026.
Official description
H0035Mental health partial hospitalization, treatment, less than 24 hours
Short description: Mh partial hosp tx under 24h
HCPCS · United States
Medicare details
The indicators CMS publishes with H0035 in its October 2026 file. They describe Medicare’s handling, not another payer’s.
- Medicare coverage
- Not payable by Medicare
- Medicare pricing
- Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)
- Type of service
- Other medical items or services
- BETOS category
- Undefined codes
- Added
- Jan 1, 2003
Where H0035 sits
- 1H codesBehavioral health and substance use services
- 2Active code H0035Mental health partial hospitalization, treatment, less than 24 hours
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 H0035 mean?
H0035 is the HCPCS code for “Mental health partial hospitalization, treatment, less than 24 hours” in CMS’s HCPCS Level II October 2026 release.
Does Medicare cover H0035?
CMS lists H0035’s Medicare coverage as “Not payable by Medicare” and its pricing as “Service not separately priced by Part B (e.g., services not covered, bundled, used by Part A only, etc.)”. 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 H0035
All H codesH0029Alcohol and/or drug prevention alternatives service (services for populations that exclude alcohol and other drug use e.g., alcohol free social events)H0030Behavioral health hotline serviceH0031Mental health assessment, by non-physicianH0032Mental health service plan development by non-physicianH0033Oral medication administration, direct observationH0034Medication training and support, per 15 minutesH0036Community psychiatric supportive treatment, face-to-face, per 15 minutesH0037Community psychiatric supportive treatment program, per diemH0038Self-help/peer services, per 15 minutesH0039Assertive community treatment, face-to-face, per 15 minutesH0040Assertive community treatment program, per diemH0041Foster care, child, non-therapeutic, per diem