H0035 HCPCS code: Mental health partial hospitalization, treatment, less than 24 hours
H0035 is the HCPCS Level II code for mental health partial hospitalization, treatment, less than 24 hours. Its Medicare coverage code is I (Not payable by Medicare): Medicare does not pay separately under this code; another code applies.
Code details
| Field | Value |
|---|---|
| Section | H codes — Alcohol and drug abuse treatment services |
| Coverage code | I — Not payable by Medicare |
| Pricing indicator | 00 — Not separately priced by Medicare |
| BETOS category | Z2 |
| Added | 2003-01-01 |
| Last action effective | 2003-01-01 |
What changed for H0035
- 2003-01-01: H0035 added to HCPCS Level II
- Next scheduled CMS quarterly update (HCPCS and DMEPOS fee schedule): 2027-01-01
Frequently asked questions
What is HCPCS code H0035?
H0035 is the HCPCS Level II code for mental health partial hospitalization, treatment, less than 24 hours. Short descriptor: "Mh partial hosp tx under 24h".
Does Medicare cover H0035?
Coverage code I — Not payable by Medicare. Medicare does not pay separately under this code; another code applies.
Related H00 codes
- H0001 — Alcohol and/or drug assessment
- H0002 — Behavioral health screening to determine eligibility for admission to treatment program
- H0003 — Alcohol and/or drug screening; laboratory analysis of specimens for presence of alcohol and/or drugs
- H0004 — Behavioral health counseling and therapy, per 15 minutes
- H0005 — Alcohol and/or drug services; group counseling by a clinician
- H0006 — Alcohol and/or drug services; case management
- H0007 — Alcohol and/or drug services; crisis intervention (outpatient)
- H0008 — Alcohol and/or drug services; sub-acute detoxification (hospital inpatient)
- H0009 — Alcohol and/or drug services; acute detoxification (hospital inpatient)
- H0010 — Alcohol and/or drug services; sub-acute detoxification (residential addiction program inpatient)
- H0011 — Alcohol and/or drug services; acute detoxification (residential addiction program inpatient)
- H0012 — Alcohol and/or drug services; sub-acute detoxification (residential addiction program outpatient)
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Next steps
- Run a reimbursement report for a device billed under H0035
- Watch H0035 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for H0035
Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.