HCPCS Code H2024: Supported employment, per diem

Key takeaways

HCPCS Code H2024 covers supported employment services billed per diem, meaning one unit for each calendar day of service.

Medicaid funds H2024 and Medicare Part B does not reimburse it under standard circumstances. Rates are set state by state.

The most common error is confusing H2024 with H2023, which bills in 15-minute units. The wrong unit triggers denials or recoupments.

Several states will only pay H2024 to providers certified under the Individual Placement and Support model.

Pabau’s claims management software helps behavioral health practices track Medicaid authorizations, apply correct modifiers, and keep H2024 documentation audit-ready.

HCPCS Code H2024 covers supported employment services billed at a per diem rate, meaning one unit for each calendar day of service. Medicaid funds it, and Medicare Part B does not.

The code sits alongside H2023, which covers the same services in 15-minute units. Choosing between the two is where most supported employment denials start. Behavioral health billers and mental health EMR teams should settle the unit rule before the first claim goes out.

H2024 sits in the H-series of HCPCS Level II, the range the CMS HCPCS code set reserves for mental health and substance abuse services. The Centers for Medicare and Medicaid Services maintains the code and updates it every year.

H2024 code description and key details

The official code descriptor is concise: “Supported employment, per diem.” That brevity hides a lot of billing complexity. The table below summarizes the key parameters coders need before submitting a claim.

Per diem means one unit of H2024 covers a full day of supported employment services, not a set block of time. H2023 is the 15-minute alternative. Submitting two units of H2024 for one calendar day is a billing error, unless the state Medicaid plan explicitly allows it.

What services does H2024 cover?

H2024 covers vocational rehabilitation activities for individuals with serious mental illness (SMI) or developmental disabilities. Every billed activity has to help the individual obtain, maintain, or advance in competitive integrated employment.

• Job placement assistance: Identifying job opportunities, submitting applications, and preparing individuals for interviews.
• Job coaching: On-site or remote support to help the individual learn job tasks, navigate workplace norms, and build relationships with coworkers.
• Employer engagement: Coordination with employers on accommodations, schedules, and performance expectations.
• Crisis support at the worksite: Rapid response when a job is at risk due to the individual’s behavioral health condition.
• Benefits counseling: Helping individuals understand how employment income affects Medicaid or Social Security benefits (varies by state Medicaid plan).
• Employment retention support: Follow-along services that keep the job stable, where the state folds them into the per diem rather than H2025.

Note that the specific activities billable under H2024 may vary by state Medicaid plan. Some states limit coverage to certain phases of supported employment (for example, covering job development but not benefits counseling). Always verify with the relevant state Medicaid billing manual before submitting claims.

Who can bill HCPCS Code H2024?

Provider eligibility for H2024 is the most state-dependent part of this code, and there is no national provider type requirement. Two things hold everywhere. The provider must be enrolled in Medicaid, and the services must sit inside a state-authorized supported employment program.

Providers who commonly bill H2024 – depending on state Medicaid qualifications – include:

• Community Mental Health Centers (CMHCs)
• Behavioral health agencies and outpatient mental health clinics
• Vocational rehabilitation providers enrolled in Medicaid
• Supported employment agencies certified under the Individual Placement and Support (IPS) model
• Psychiatric rehabilitation programs

Several states will only accept H2024 claims from providers certified under the Individual Placement and Support model, or from those working inside a certified program. Treat that certification as a billing prerequisite rather than a quality badge. Practices running psychiatry EMR software alongside Medicaid billing should confirm their status with the state agency first.

Medicaid coverage and reimbursement for H2024

H2024 is Medicaid-funded, and Medicare Part B does not cover it under standard circumstances. That matters most for dual-eligible patients, where teams sometimes bill Medicare out of habit. When a patient carries both, supported employment services under H2024 go to Medicaid only.

Reimbursement rates are set by each state’s Medicaid program and vary widely. There is no CMS-published national fee schedule rate for H2024 (unlike Medicare Part B services billed via the CMS Physician Fee Schedule). Managed care organizations (MCOs) that administer Medicaid in many states may set their own rates within state-negotiated parameters.

H2024 fee schedule rates by state

The table below reflects published per diem rates from selected state Medicaid programs. The figures show how wide the variation runs. Rates change annually, so verify the current one with your state Medicaid agency or MCO before you bill.

Prior authorization is required in many states before services begin. Some state Medicaid programs require an individualized supported employment plan to be approved before any H2024 claims are payable. Check the state-specific billing manual for authorization procedures.

H2024 billing guidelines

Clean H2024 claims come down to unit logic, place of service, and payer-specific rules. The steps below reflect general Medicaid practice, so confirm plan specifics in your state’s billing manual. The AAPC HCPCS lookup is a quick way to check code parameters before submission.

1. Confirm Medicaid enrollment and prior authorization. Verify the patient’s Medicaid eligibility and confirm any required prior authorization is active before services begin.
2. Document the service date and duration. H2024 bills as one unit per calendar day. Document the date services were provided, the specific supported employment activities delivered, and total time spent.
3. Select the correct place of service (POS) code. Most state Medicaid programs require POS 99 (Other Place of Service) for community-based supported employment. Some states require a different POS, so verify before submitting.
4. Apply applicable modifiers. Attach any required modifiers (see the modifiers section below). Incorrect or missing modifiers are a common denial trigger for H-series codes.
5. Submit on CMS-1500 or electronic 837P. Behavioral health providers typically bill H2024 using the CMS-1500 claim form or its electronic equivalent. Confirm the billing format required by the state Medicaid program or MCO.
6. Retain documentation in the patient record. Supported employment claims are frequently subject to post-payment audits, so keep notes, authorizations, and eligibility checks easy to retrieve.

Applicable modifiers for H2024

Modifier applicability for H2024 varies by state Medicaid plan. The table below lists modifiers commonly associated with H-series supported employment codes. Requirements change with plan updates, so verify them against the state billing manual or the MCO contract each year.

Documentation requirements for H2024

Supported employment claims are among the most frequently audited Medicaid behavioral health services. Per diem billing without solid documentation is the fastest path to a recoupment demand.

HIPAA-compliant documentation is the baseline, and state Medicaid rules for H2024 usually ask for more than that. Structured clinical notes and digital intake forms produce the daily record an auditor looks for.

Required documentation typically includes:

• Individualized supported employment plan: A written plan approved by the clinical team, outlining employment goals, service activities, and measurable outcomes. Many states require this before any H2024 claims are payable.
• Daily service notes: A note for each calendar day billed. Notes must record the date, the start and end time, and the specific activities performed. Add the participant response, plus the name and credentials of the staff member delivering the service.
• Authorization documentation: Proof of prior authorization, including the authorization number, covered service dates, and approved units.
• Progress toward employment goals: Documentation showing movement toward competitive integrated employment, such as applications submitted, interviews attended, or worksite hours logged. States set the frequency, usually weekly or monthly.
• Staff credential verification: Documentation showing the billing staff meets state qualification requirements for delivering supported employment services.
• Patient eligibility verification: Medicaid eligibility check dated within the billing period.

Behavioral health codes billed alongside H2024 share much of this standard, including the ADHD screening CPT code. The service-note requirements for H2024 go further than most outpatient codes. Do not reuse a standard therapy note format for supported employment claims without checking your state’s rules first.

Related HCPCS codes and crosswalk for H2024

H2024 sits in a cluster of supported employment codes that split by billing unit and by service phase. Reading across them before you submit prevents the error that drives most denials here, which is billing the wrong unit type.

The H2023 and H2024 split is where most billing errors occur. If the state Medicaid plan pays per 15-minute unit, H2023 applies. If it pays a daily rate regardless of service hours, H2024 is correct. Automated claims edits will not always catch a mismatch between the two. Auditors will.

Unit type also separates H2024 from the wider set of Medicaid community supports. H0044 bills supported housing on a monthly unit, a third pattern to track when a client receives both. Coaching CPT codes sometimes land on the same date of service, so confirm with the payer whether concurrent billing is allowed.

How practice management software simplifies H2024 billing

H-series codes like H2024 carry a documentation burden that generic billing platforms handle poorly. Per diem billing needs a daily service note for every billed date, authorization tracking across service periods, and modifier logic that shifts by state. Errors pile up when that work is manual, split across spreadsheets, paper notes, and a separate billing portal.

Practice management software like Pabau keeps the clinical note and the claim in one record. Pabau’s claims management software tracks Medicaid authorization numbers and expiry dates. It flags claims missing a required modifier before they leave the practice, and ties each per diem service note to the patient record.

Pabau’s automated workflows then cross-check authorization status against every date of service before a batch goes out. That takes away the end-of-month reconciliation that per diem billing usually pushes onto a coder.

When several staff bill H2024 across a caseload, audit-readiness matters as much as code accuracy. Pabau’s client records keep daily service notes, authorization documents, and credential verification in one searchable place. That is the structure auditors expect from a supported employment claim.

Simplify your behavioral health billing with Pabau

Pabau's claims management tools help behavioral health practices track Medicaid authorizations, apply correct modifiers, and maintain audit-ready documentation for H-series HCPCS codes.

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Conclusion

Nearly every H2024 problem starts with the unit rather than the service itself. Settle how your state pays for supported employment before the first claim goes out, and the remaining rules become routine.

Practices that avoid recoupments write the daily service note on the day of service and keep the authorization number attached to it. An audit then becomes a retrieval exercise instead of a reconstruction.

That discipline is far easier to hold when the note, the authorization, and the claim sit in one record. Book a demo to see how Pabau handles Medicaid behavioral health billing end to end.

Continue your research

Need the 15-minute behavioral health equivalent? H2019 covers therapeutic behavioral services in time units, with its own documentation standard.

Running a day treatment program? H2012 sets out behavioral health day treatment billing and the denial triggers that come with it.

Starting from the intake assessment? H0031 covers the mental health assessment that usually opens a supported employment episode.

Billing prevention services as well? H0025 covers behavioral health prevention education and how states set its units.

Frequently asked questions