CPT code 15828: Rhytidectomy of cheek, chin, and neck
CPT code 15828 claims get denied often, and rarely because of the surgery itself...
Last Updated: August 11, 2026
Key takeaways
HCPCS Code H2031 describes mental health clubhouse services billed on a per diem basis under HCPCS Level II
One unit of H2031 covers one calendar day, so a second unit on the same date is a coding error
Medicaid is the primary payer for H2031, and traditional Medicare does not cover H-series behavioral health codes
Denials most often stem from missing treatment plans, incorrect per diem unit counts, or absent attendance records
Practice management software like Pabau supports Medicaid claim submission and per diem billing workflows for behavioral health programs
HCPCS Code H2031 covers mental health clubhouse services billed on a per diem basis. One unit equals one full calendar day of program participation, whatever hours the member attends.
The code is active for 2026 and sits in the H-series of HCPCS Level II, which covers mental health and substance abuse services.
H2031 is maintained by the Centers for Medicare and Medicaid Services (CMS). Its official long description is Mental health clubhouse services, per diem. On claims it appears as MH clubhouse svc, per diem.
Denials on H2031 usually trace back to the billing unit. Coders trained on per-session CPT billing submit two or three units for one program day, and the claim rejects. Other per diem behavioral health codes such as T1020 follow the same one-unit-per-day rule.
This reference covers the code’s metadata, Medicaid billing rules, documentation requirements, modifier usage, related codes, and common denial patterns.
Mental health clubhouse services: What H2031 covers
The clubhouse model of psychiatric rehabilitation was developed at Fountain House in New York in the late 1940s. Today, the International Center for Clubhouse Development (ICCD) accredits over 300 clubhouses worldwide, across roughly 30 countries. H2031 captures the billing for the daily community-based program these facilities run.
Clubhouse services target adults with serious mental illness, known as SMI. SAMHSA defines SMI as a diagnosable mental, behavioral, or emotional disorder that substantially limits major life activities.
Delivery is non-clinical but clinically supported. Members join voluntarily and take part in structured work units, social activities, and skill-building rather than individual therapy sessions.
What falls within a billable H2031 day of service typically includes:
- Work-ordered day activities (administrative tasks, food service, maintenance units)
- Supported employment preparation and job coaching
- Social skills and life skills development
- Peer support and social integration activities
- Psychoeducational groups (not billed separately when part of the per diem program)
- Care coordination and case management embedded in the program day
Because billing is per diem, all services delivered on a single calendar day bundle into one unit of H2031. Billing a second unit for the same member on the same day is a coding error that will trigger denial or recoupment.
Who can bill H2031?
Provider eligibility for H2031 is determined at the state Medicaid level, not federally. That means requirements vary significantly by state. Generally, eligible billing entities include:
- Community mental health centers (CMHCs) enrolled as Medicaid providers in their state
- Psychiatric rehabilitation programs operating under state mental health authority licensure
- Certified clubhouse programs, particularly those holding ICCD accreditation (some states require this)
- Behavioral health organizations with a Medicaid provider agreement that includes H-series codes
Individual clinicians generally cannot bill H2031 under their own National Provider Identifier (NPI). The code is a program-level, facility-based code, so claims go out under the organization’s NPI with the taxonomy code for the facility type.
Programs that outsource their back office to a management services organization should confirm which entity’s NPI the state expects on the claim. Get that wrong and the claim denies before anyone reads the clinical detail.
Facilities using psychiatry EMR software can manage provider enrollment and NPI credentialing inside the billing workflow. That cuts errors at the claim submission stage.
Always verify enrollment and taxonomy requirements with your state Medicaid agency before submitting H2031 claims.
Medicaid coverage and reimbursement rates
H-series HCPCS codes are not part of the Medicare Physician Fee Schedule. Medicare does not cover H2031 under traditional fee-for-service Medicare.
Some Medicare Advantage plans may cover clubhouse-type services under supplemental benefits, but this varies by plan and is not guaranteed. Verify directly with the specific plan before billing.
Medicaid is the primary payer. Because Medicaid is a joint federal-state program, each state sets its own reimbursement rate for H2031. The CMS Physician Fee Schedule does not list H2031 rates, since it is not a Medicare-covered code. Get the rate directly from your state’s Medicaid fee schedule.
H2031 fee schedule 2026: Illustrative state ranges
The following represents general published ranges from state Medicaid sources. Actual rates depend on the specific state plan, managed care organization (MCO) contracts, and annual rate updates. Always verify with your state Medicaid agency or MCO for current rates.
H2031 billing guidelines
Per diem codes behave differently from time-based or per-visit codes, and several rules catch billers off guard. This trips up teams used to CPT-based outpatient mental health billing.
Use the AAPC HCPCS lookup and your state Medicaid provider manual as your primary references. These are the core billing rules:
- One unit per day, per member: Bill one unit no matter how many hours or activities the member takes part in that calendar day.
- Place of service: Typically POS 99 (Other Place of Service), or the code your state Medicaid plan specifies. Verify the required POS code with your state agency.
- Claim form: Facility-based programs usually submit a UB-04 institutional claim. Non-institutional billing uses a CMS-1500. Check with your state Medicaid for the required form.
- Minimum service threshold: Most state Medicaid programs set a minimum attendance of three to four hours to bill a full per diem unit. Partial day policies vary by state.
- Prior authorization: Some state Medicaid plans and MCOs require prior authorization for H2031. Check your state’s requirements before you start services.
- HIPAA transaction standards: Electronic claims must comply with HIPAA transaction and code set standards (45 CFR 162).
HIPAA-compliant documentation matters for any behavioral health program billing H2031. If the audit trail between attendance records and submitted claims breaks anywhere, the money is exposed to recoupment.
Modifiers for H2031
Modifiers are not universally required for H2031, but some state Medicaid programs and MCOs ask for them. Check applicability with your specific payer before you append one. These are the modifiers that may apply:
Pro Tip
Before appending any modifier to H2031, pull your state Medicaid provider manual or contact your MCO’s provider relations team. Appending an unsupported modifier causes as many denials as omitting a required one. Build a modifier rule reference into your billing team’s code-setup documentation so new staff don’t guess.
Documentation requirements for H2031
Medicaid audits of H2031 claims consistently flag the same two failures. The first is no treatment plan on file when the claim went out. The second is attendance records that don’t match the billed dates. Strong documentation starts before the first billable day.
A structured psychiatric evaluation template sets the medical necessity baseline that supports ongoing H2031 billing. The clinical record has to connect the initial SMI diagnosis to the clubhouse enrollment. Progress documentation then has to show continued medical necessity for each billing period.
Required documentation typically includes the following (requirements vary by state Medicaid program):
- Diagnostic assessment: Current psychiatric diagnosis supporting medical necessity for SMI-level programming, with ICD-10-CM codes documented.
- Individualized treatment plan (ITP): Goals, objectives, planned services, and expected duration. A qualified professional signs it, and your state sets the update interval (commonly every 90 days).
- Attendance records: Daily sign-in logs or electronic records confirming the member was present on each billed date, with time in and time out.
- Progress notes: Notes on the member’s participation, progress toward treatment plan goals, and any incidents. Frequency varies by state, with weekly or monthly the norm.
- Medical necessity justification: Why the member needs the intensity of a clubhouse per diem program rather than a lower level of care.
- Consent and enrollment documentation: Signed member consent and program enrollment forms.
Writing SOAP notes for behavioral health takes a structure that satisfies clinical and billing standards at once. Keeping those records in a central client record management system keeps the audit trail complete and retrievable.
Digital intake forms capture consent and assessment data at enrollment in a format that feeds straight into the clinical record. That removes a transcription step, and with it a common source of audit findings.
Related HCPCS codes to H2031
H2031 sits within a broader set of H-series behavioral health codes. Knowing the adjacent codes prevents upcoding, undercoding, and duplicate billing. It also stops your team unbundling services that the per diem rate already pays for.
Some state Medicaid waiver programs authorize clubhouse-style services under T2025 instead of H2031. Check which code your state plan uses before you build the billing rule, because the two are not interchangeable.
Common billing errors and how to avoid them
The per diem billing model is unfamiliar to coders trained mainly on outpatient CPT billing, and denials follow. These are the most common failure points, and what to do about each.
- Billing multiple units on the same date: H2031 is one unit per day, per member. Two units on a single date trigger an automatic denial. Cap H2031 at one unit per member per day in your billing system.
- Missing or expired treatment plan: Most Medicaid programs require a current, signed ITP on file. An expired plan with no documented renewal leaves the claim without medical necessity support. It will be recouped on audit, so set renewal reminders at the interval your state requires.
- Missing attendance records: A billed day with no attendance documentation is indefensible on audit. Electronic attendance tracking with a time-stamped sign-in builds the audit trail for you. Reconcile attendance against claims weekly before submission.
- Incorrect place of service code: The wrong POS code, or a blank one, routes the claim to the wrong adjudication pathway. Confirm the required POS with your state Medicaid manual.
- Wrong NPI on the claim: An individual provider NPI on an H2031 claim reads as an eligibility mismatch. The claim has to carry the organizational NPI. Verify it in your practice management system before submitting.
- No prior authorization when required: Some MCOs require prior authorization for H2031. Submitting without it means denial whatever the clinical picture. Build an authorization check into the enrollment workflow.
Diagnosis coding is the other common denial trigger. Pairing H2031 with an ICD-10-CM code that is wrong, or simply not specific enough, will fail the medical necessity test. The diagnosis on the claim has to support the clubhouse level of care.
How practice management software supports H2031 billing
Knowing what H2031 means is the easy part. The work is turning it into a repeatable, auditable billing routine. A program with 40 members generates 40 claims a day. Each one needs a matching attendance record and a live treatment plan.
Most programs still do that by hand, reconciling sign-in sheets against the billing run once a week. Treatment plan renewal dates live in someone’s calendar. Duplicate units surface only when the remittance advice comes back.
Practice management software like Pabau moves those checks into the system itself. A mental health EMR ties attendance straight to the clinical record, so nobody reconciles sign-in sheets by hand. Treatment plan renewal alerts fire before a plan expires, which protects the medical necessity record behind every claim.
Claims management software with HCPCS code rules holds H2031 to one unit per member per day, so duplicates never reach the payer. Automated workflows flag incomplete documentation before the claim is generated. A weekly pre-submission audit becomes a check that runs on every claim.
Streamline your H2031 billing with Pabau
Pabau helps behavioral health programs automate per diem billing workflows, enforce documentation requirements, and submit Medicaid claims with fewer errors. See how it works for mental health clubhouse programs.
Conclusion
The per diem structure is what makes H2031 unusual, and it is also what makes it easy to get wrong. Once your team treats one calendar day as one unit and nothing else, most of the denial risk disappears.
What remains is a records problem. Every billed day has to trace back to an attendance record and a treatment plan that was current on that date. Build that reconciliation into the daily routine rather than the monthly one. Then an audit request becomes a lookup instead of a search.
For a program running dozens of claims a day, holding all of that together by hand is not sustainable. Book a demo to see how Pabau enforces HCPCS Level II behavioral health billing rules before a claim leaves the building.
Continue your research
Billing through a certified community behavioral health clinic? T1040 covers the other per diem Medicaid code behavioral health programs bill most often.
Running day treatment alongside your clubhouse program? H2012 sets out the hourly billing rules that apply when a day is not billed per diem.
Need a treatment plan you can build on? Substance abuse treatment plan lays out goals and objectives in the format Medicaid auditors expect.
Frequently asked questions
What is HCPCS Code H2031 used for?
HCPCS Code H2031 bills mental health clubhouse services on a per diem basis. It covers community-based psychiatric rehabilitation programs for adults with serious mental illness. Members take part in structured work, social, and skills activities through the day. One unit represents one full calendar day of participation.
Is H2031 covered by Medicare?
No. Traditional Medicare does not cover HCPCS H-series codes, including H2031. Medicaid is the primary payer. Some Medicare Advantage plans may cover clubhouse-type services under supplemental behavioral health benefits, but coverage is plan-specific and must be verified before billing.
What documentation is required to bill H2031?
Requirements vary by state Medicaid program, but the core set is consistent. You need a current individualized treatment plan (ITP) signed by a qualified professional. You also need daily attendance records for each billed date and progress notes at state-required intervals. A diagnostic assessment with ICD-10-CM codes must support SMI medical necessity, alongside signed enrollment and consent forms.
Who is eligible to bill HCPCS Code H2031?
Eligible billing entities are generally Medicaid-enrolled community mental health centers, certified psychiatric rehabilitation programs, and ICCD-accredited clubhouse programs. H2031 is a program-level code billed under the organization’s NPI, not an individual clinician’s NPI. Eligibility requirements vary by state Medicaid plan.
What is the reimbursement rate for H2031?
Reimbursement rates are state-determined and are not published in the Medicare Physician Fee Schedule. Fee-for-service Medicaid rates generally range from approximately $40 to $120 per diem depending on the state. MCO rates are negotiated per contract. Verify the current rate directly with your state Medicaid agency or managed care plan.
How does H2031 differ from H2016?
Both are per diem codes, but they cover different services. H2016 covers comprehensive community support broadly, while H2031 is specific to mental health clubhouse services. The clubhouse model follows the Fountain House and ICCD framework. Some state Medicaid programs use one or the other depending on how they license clubhouse programs, so check your state policy.
