Most treatment centers are leaving money on the table every single month. Not because they’re not doing the work—they are. Their staff are making housing calls, coordinating with PCPs, connecting patients to employment services. They’re just not billing for it.
H0006 exists precisely for this work. It's a HCPCS code maintained by CMS for alcohol and/or drug services; case management—the coordination, the referrals, the follow-through that keeps a patient from falling apart between sessions. If your program serves Medicaid patients with SUD and you’re not capturing H0006, you’re doing the work for free.[aapc]
What H0006 Actually Covers
H0006 is defined as alcohol and/or drug services; case management. That broad definition covers a lot of ground—intentionally. The core service is the coordination of care, helping a patient navigate systems outside the clinical setting that directly affect their recovery, as outlined in SAMHSA's guidance on comprehensive case management for SUD treatment. In practice, that means:hcpcs+1
Connecting patients to housing resources: transitional housing, sober living referrals, emergency shelter applications.
Coordinating with primary care and medical providers for co-occurring health issues—which is common in SUD treatment.
Linking patients to employment services, vocational rehab, or job training programs.
Navigating social services: including SNAP, Medicaid enrollment, transportation assistance, and childcare.
Interagency coordination: communicating with probation officers, child protective services, or court systems when relevant.
This is not therapy. It’s not a clinical session. It’s the logistical backbone that makes treatment stick. Research shows case management can reduce substance use and improve treatment retention for SUD patients.[pmc.ncbi.nlm.nih]
How H0006 Is Billed: Monthly, Not Per Visit
One of the most misunderstood aspects of H0006 is its billing structure. Unlike most behavioral health codes that bill per unit of time (15-minute increments, typically), H0006 is generally billed as a monthly service—one claim per member per month, regardless of how many touchpoints occurred. Some states, like Ohio, set it up for 15-minute units.[dam.assets.ohio]
That has two implications:
Documentation needs to capture the scope of the month’s activity, not just a single encounter. Your case manager’s notes should reflect the range of contacts, coordination efforts, and referrals made throughout the billing period.
You don’t need to bill it hourly—which means you need strong internal tracking to ensure you’re actually claiming it every eligible month, not just when a big coordination event happens.
Check your state Medicaid fee schedule—rates vary, for example, Colorado reimburses around $8.45 per 15-minute unit for SUD targeted case management under H0006.[hcpf.colorado]
Who Can Deliver H0006 Services
This is where programs run into compliance problems. Not every staff member qualifies as a case manager under Medicaid rules, and the credentialing requirements vary by state. Generally, states require at minimum a bachelor's degree in a human services field, though many need licensure (LCSW, LPC, LMFT) or a certified addiction counselor credential (CAC, CADC, LCDC). Some states allow paraprofessional case managers under the supervision of a licensed clinician—but that supervision needs to be documented.flcertificationboard+1
A few things to audit at your program:
Does your job description for case managers meet your state Medicaid credentialing requirements?
Are your case managers listed on your Medicaid provider roster?
If you’re using supervision, is it documented with required frequency and format?
If you’re billing H0006 with staff who don’t meet the credentialing threshold, you’re exposed to recoupment. This is one of the most common audit findings in SUD billing.
H0006 in the Context of an IOP or PHP Program
H0006 is almost always bundled with an outpatient treatment episode—it’s rarely a standalone service. In an IOP (Intensive Outpatient Program) or PHP (Partial Hospitalization Program), case management is part of the broader care model. Programs like IOP use codes such as H0015 alongside H0006. A typical Medicaid billing picture for an IOP patient might look like:[superiorhealthplan]
H0015: IOP services (billed per diem or per unit).
H0006: Case management (billed monthly).
H2019 or T1017: Targeted case management, if applicable.
90837/90834: Individual therapy, if billed separately.
H0006 can run concurrently with most of these. The key is ensuring that your case management documentation is distinct from your therapy notes. If a Medicaid auditor can’t tell the difference between your therapist’s progress note and your case manager’s coordination notes, you have a documentation problem that will cost you in an audit.
Common Billing Errors With H0006
Here are the pitfalls we see most often:
Not billing it at all. Programs do the work—the billing never gets submitted. Usually a staff workflow problem: case managers aren’t completing encounter documentation in time for billing close.
Billing it without documentation. A claim without a case management note is just a number. You need a written record of what coordination occurred, who was contacted, what referrals were made, and the outcome.
Double-billing with T1017. H0006 and T1017 (Targeted Case Management) cover similar ground. Some states allow both; others consider them duplicative. Know your state’s billing rules before layering them.
Wrong modifier usage. Some payers require modifiers like HH (for home health context) or U-series modifiers for co-occurring disorders to process H0006 correctly. Missing modifiers = denied claims.
Billing for patients who weren’t active in services. H0006 requires active patient engagement during the billing period. If a patient ghosted for 30 days, you can’t bill case management for that month.
Building a Case Management Infrastructure That Actually Bills
If you want H0006 revenue to be reliable—not just occasional—you need systems, not heroics. That means:
A monthly billing checklist that triggers case management claims at close of each period.
Encounter documentation templates that capture the required elements in 5 minutes or less.
A roster reconciliation process to confirm which patients are active before billing runs.
Staff training on what constitutes a billable case management activity vs. general administrative work.
The programs that maximize H0006 revenue aren’t doing more case management—they’re documenting and billing what they already do. The percentage of U.S. SUD treatment programs using case management has risen to 83%, showing its growing recognition.[library.samhsa]
FAQ: H0006 Case Management Billing
What is H0006 used for?
H0006 is a Medicaid HCPCS code used to bill for case management services in alcohol and drug treatment programs. It covers coordination of care—including referrals to housing, employment, medical services, and social supports—billed on a monthly basis for active SUD patients.[hcpcs]
How much does H0006 reimburse?
Reimbursement varies significantly by state. Most state Medicaid programs pay between $85 and $250 per member per month for H0006, though some allow per-unit billing (15-minute increments). Check your state’s published Medicaid fee schedule for the exact rate.[ppl-ai-file-upload.s3.amazonaws]
Can H0006 be billed alongside IOP or PHP services?
Yes. H0006 is typically billed concurrently with outpatient treatment codes like H0015 (IOP). The documentation for case management must be distinct from therapy notes to avoid audit risk.[superiorhealthplan]
Who qualifies to provide H0006 case management?
Requirements vary by state but generally include a bachelor’s degree in a human services field, a certified addiction counselor credential, or clinical licensure (LCSW, LPC, etc.). Some states allow bachelor’s-level or paraprofessional case managers under licensed supervision. Verify with your state Medicaid agency.[oklahoma]
What documentation is required to bill H0006?
At minimum: the dates of case management activity, the nature of coordination performed (who was contacted, what referrals were made), the patient’s name and Medicaid ID, the name and credential of the case manager, and the outcome or plan. Monthly billing requires notes covering the full period of service.
What’s the difference between H0006 and T1017?
Both codes cover case management for behavioral health patients, but T1017 specifically refers to targeted case management under a formal Medicaid HCBS waiver or targeted case management benefit. Some states allow both; others prohibit billing them for the same patient in the same period. Know your state’s rules before billing both.
H0006 is one of dozens of codes that well-run behavioral health programs should be capturing routinely. Most aren’t—not because the services aren’t being delivered, but because the billing and documentation infrastructure isn’t built to capture them.
ForwardCare is a behavioral health MSO that partners with clinicians, sober living operators, and healthcare entrepreneurs to launch and scale IOP and PHP programs. We handle the business side—billing, compliance, credentialing, insurance contracting, and operational infrastructure—so you can focus on growth and clinical quality. If you’re building or scaling a program and want to make sure you’re capturing every dollar you’ve earned, it’s worth having a conversation.
