HCPCS code H0047 – Alcohol and drug abuse services

Key takeaways

HCPCS Code H0047 is the not-otherwise-specified code for alcohol and/or other drug abuse services that no more specific H code describes.

The descriptor sets no unit of service, so each state Medicaid program or MCO defines the scope, the unit, and the rate.

Medicare does not pay H0047 (coverage code I), so state Medicaid programs and MCOs are the main payers.

Use H0001 for an alcohol and/or drug assessment, H0049 for screening, and H0048 for non-blood specimen collection.

Pabau, the practice management platform we build, keeps substance use notes, modifiers, and claim status in one patient record.

HCPCS Code H0047: Definition and official descriptor

HCPCS Code H0047 is the HCPCS Level II code for alcohol and/or other drug abuse services, not otherwise specified (NOS). It is a catch-all for substance use services that no more specific H code describes. The Centers for Medicare & Medicaid Services (CMS) maintains the HCPCS Level II code set, as set out in the CMS HCPCS overview.

The descriptor names no service and no unit. Each state Medicaid program or managed care organization (MCO) decides which services it reports under H0047, how a unit is counted, and what it pays. Medicare does not pay the code.

What H0047 covers and what it excludes

H0047 has no national service definition. It covers whatever substance use service a state Medicaid program or MCO assigns to it, and nothing that a more specific code already describes. Your state’s provider manual or fee schedule is the only reliable source for its scope.

When payers use H0047

• A state Medicaid program lists a named substance use service under H0047 in its fee schedule.
• An MCO contract maps a program-specific service to H0047 for its members.
• The service is a covered alcohol or drug service, but no specific HCPCS or CPT code describes it.

Services with their own codes (do not bill as H0047)

• H0001 — alcohol and/or drug assessment, including intake and level-of-care evaluations
• H0002 — behavioral health screening to determine eligibility for admission to a treatment program
• H0048 — alcohol and/or other drug testing: collection and handling only, specimens other than blood
• H0049 — alcohol and/or drug screening
• Individual or group counseling sessions (typically billed under H0004, H0005, or applicable CPT codes)
• Medication-assisted treatment (MAT) services (separate HCPCS codes apply)

H0047 vs. H0001, H0048 and H0049: Choosing the right code

The adjacent H00xx codes describe different steps in substance use care, and only H0047 is unspecified. Payers expect the most specific code that fits. Reporting H0047 for an assessment that H0001 describes, or a screen that H0049 describes, invites a denial. The decision path below shows the order to check them in.

The table adds when to use each code. Descriptors follow the AAPC HCPCS code set.

Payer coverage: Medicaid, Medicare, and commercial plans

H0047 is primarily a Medicaid code. Medicare lists it with coverage code I, which means it is not payable under Medicare, and pricing indicator 00. State Medicaid fee-for-service and managed care programs are the main payers. The table below summarizes coverage by payer type, with reference to the Medicare Informatics HCPCS tables.

Prior authorization requirements for H0047

Prior authorization (PA) rules for H0047 are set by each state Medicaid program and MCO contract. Because the code has no national definition, check the specific payer policy for your state before every new service line. Billing without a required authorization is one of the most common reasons these claims are denied.

1. Identify the payer’s PA requirement. Search the state Medicaid provider portal or MCO provider manual for H0047 under the substance use or behavioral health section.
2. Confirm which service the payer maps to H0047. The authorization must name the same service that your clinical note will describe.
3. Gather clinical data before submitting the request. Most payers ask for a substance use diagnosis, a clinical summary, and the proposed service and frequency.
4. Submit the PA request through the payer’s channel. Some states use an electronic portal, while others require phone-based review or fax submission.
5. Document the authorization number. Record the PA number, the authorized units in the payer’s unit of measure, and the authorization period in the patient’s chart.
6. Bill within the authorized window. Dates of service must fall within the PA period. Claims outside it are typically denied with claim adjustment reason code (CARC) 197.

Documentation requirements for H0047 claims

Behavioral health practices billing H0047 need a clinical record behind every claim that can withstand a post-payment audit. Because the code is unspecified, the note has to show that the service matches the state’s own definition. At minimum, the record should contain the following.

• Signed and dated service note with the actual date of service
• A description of the service delivered that matches the payer’s definition of H0047
• Start and stop times, or a count of encounters, wherever the payer uses time-based or encounter units
• Primary substance use diagnosis (ICD-10-CM F10–F19 range) and the medical necessity for the service
• ASAM Criteria level-of-care placement, where the state ties the service to a level of care
• Rendering clinician’s credentials and NPI (confirm the clinician is credentialed with the payer)
• Patient consent for treatment and release of information
• Prior authorization number, if PA was required

Modifier and place-of-service rules for H0047

Modifier and place-of-service (POS) rules for H0047 are payer-specific. Where a state requires them, missing or incorrect values can trigger automatic denials before the claim reaches a human reviewer.

Common POS codes for substance use services include the following. Verify the accepted POS codes with each payer, as some state Medicaid programs restrict H0047 to specific facility types.

• POS 11 (office)
• POS 53 (community mental health center)
• POS 55 (residential substance abuse treatment facility)
• POS 57 (non-residential substance abuse treatment facility)
• POS 72 (rural health clinic)

How to bill H0047: Units, frequency, and claim submission

Billing H0047 starts with the payer’s unit of service, because the code itself defines none. Some states count a day, others an hour, 15 minutes, or an encounter. Report units on the 837P electronic claim or paper CMS-1500 exactly as your payer defines them.

1. Confirm the unit of service in the state fee schedule or MCO contract, then enter units in that measure. Never assume a per diem unit.
2. Use the exact date of service in Box 24A (CMS-1500) or Loop 2400 DTP03 (837P). The date must match the signed service note.
3. Enter the rendering provider NPI in the appropriate field. Credentialing mismatches between the billing NPI and the rendering NPI are a frequent denial trigger.
4. Populate the diagnosis pointer to connect the primary ICD-10-CM code to the service line. Most state policies expect a substance use diagnosis in the F10–F19 range.
5. Append required modifiers in the modifier fields. Claims accept up to four modifier positions, so confirm the state-specific stacking order.
6. Submit within timely filing limits. Medicaid filing windows commonly run from 90 to 365 days after the date of service. Check your state’s specific window.

Pabau’s claims management software tracks HCPCS codes and modifier fields on each claim, and denials are worked from a single queue. A clean claim check before submission catches unit and modifier errors before the payer does.

Common reasons HCPCS Code H0047 claims are denied

H0047 claims are denied more often than claims for specific codes, because the payer has to match an unspecified code to its own service definition. Each denial carries a reason code on the remittance advice (ERA/835) that identifies the cause. Use the electronic remittance advice to triage the denial before correcting and resubmitting.

How to appeal a denied H0047 claim

Most Medicaid programs allow one or more levels of appeal, and the window commonly runs 60–180 days from the denial date. Our denial management guide sets out the full framework.

1. Pull the ERA/835 remittance advice and record the exact CARC/RARC denial reason codes.
2. Gather supporting documentation: the signed service note, the payer’s H0047 service definition, authorization records, and clinician credential verification.
3. Draft an appeal letter that addresses the specific denial reason and shows how the documented service matches the payer’s own policy for H0047.
4. Submit the appeal through the payer’s designated channel (portal, fax, or mail) within the deadline, and keep confirmation of receipt.
5. Track the reconsideration in your billing system’s denial queue. Escalate to a second-level appeal or external review if the first-level appeal is upheld.

ICD-10-CM diagnosis codes commonly paired with H0047

Every H0047 claim requires at least one valid ICD-10-CM diagnosis code. The primary diagnosis usually reflects a substance use disorder in the F10–F19 range. Secondary codes for social determinants or co-occurring mental health conditions may also be listed. Use the PGM Billing HCPCS lookup to cross-reference code pairing requirements.

Reimbursement rates and how they are determined

H0047 reimbursement is set by each state Medicaid agency or MCO, and no national Medicare fee schedule amount exists. Medicare assigns the code pricing indicator 00, and the CMS Physician Fee Schedule lookup returns no value for it.

Because each state defines its own unit, rates are not comparable from one state to the next. A daily rate in one state and a 15-minute rate in another describe different services. To find your rate, open your state Medicaid provider portal and locate the substance use or behavioral health fee schedule.

MCO rates are negotiated separately and may be higher or lower than the fee-for-service rate. Confirm rates and units with each MCO contract directly, as most states do not publish MCO reimbursement.

Compliance and audit considerations for H0047

Unspecified codes draw extra attention from state Medicaid auditors and the Office of Inspector General (OIG). Medical billing compliance programs for substance use providers should address the following risk areas.

• Code selection: Bill H0047 only when the state assigns the service to it or no specific code exists. Using it in place of H0001, H0048, or H0049 is a common audit finding.
• Medical necessity documentation: Every H0047 claim must be supported by a note that describes the service and why the patient needed it.
• Clinician credential verification: The rendering clinician must be credentialed with the payer and hold the license the state requires. Credential rules vary by state.
• Units and frequency limits: Bill units in the payer’s own measure, and stay within any limit per authorization period or per year. Exceeding the authorized units results in denial and may trigger a broader audit.
• Same-day billing with related codes: Many payers do not allow H0047 with H0001 or H0049 on the same date for the same patient. Check payer policy, including any limits on same-day CPT counseling codes.
• Record retention: HIPAA requires retaining compliance documentation for at least six years. Many state Medicaid programs set longer periods for clinical records. Set HIPAA-compliant record retention policies before the first audit request arrives.

Related HCPCS codes

H0047 sits in the H0001–H0050 block of HCPCS Level II codes for alcohol and other drug abuse services. These neighboring codes describe specific services and take priority over H0047 when they fit.

• H0001 — Alcohol and/or drug assessment
• H0002 — Behavioral health screening to determine eligibility for admission to treatment program
• H0004 — Behavioral health counseling and therapy, per 15 minutes
• H0005 — Alcohol and/or drug services; group counseling by a clinician
• H0048 — Alcohol and/or other drug testing: collection and handling only, specimens other than blood
• H0049 — Alcohol and/or drug screening
• H0050 — Alcohol and/or drug services, brief intervention, per 15 minutes

How Pabau supports H0047 documentation and claims

Many substance use programs keep the state’s service definitions in a binder and the clinical notes in a separate system. The claim is built later by someone who never saw the session. Wrong units and notes that don’t describe the service often start there.

In Pabau, the note and the claim sit in one patient record. A custom note template can prompt clinicians for the service, the time, and the diagnosis your state expects. The claim goes out from that same record, and staff can follow its status and work denials in Pabau.

The result is fewer H0047 claims sent with units or notes that don’t match the payer’s definition, and a complete record ready for an audit.

Streamline your behavioral health billing

Pabau keeps substance use notes, modifiers, and claim status in one patient record, so each H0047 claim matches your payer’s rules. See how it works for your team.

Book a demo

Conclusion

H0047 is an unspecified code, so the payer’s own policy is the definition you bill against. Treat it as the last option after H0001, H0048, and H0049. When you do use it, bill the units your state or MCO defines and describe the service in terms the payer recognizes.

Pabau keeps the note, the modifiers, and the claim status together, so your team can check those payer rules before the claim goes out. To see how it works for your substance use or behavioral health practice, book a demo.

Continue your research

Need to understand denial codes on your remittance advice? Denial codes in medical billing explains common CARC and RARC codes and how to respond to each.

Looking for guidance on behavioral health credentialing? How to get credentialed with insurance companies covers the credentialing process for behavioral health providers billing Medicaid and commercial plans.

Want to strengthen your overall revenue cycle? What is revenue cycle management walks through the end-to-end billing workflow from eligibility check to payment posting.

Screening for admission to a treatment program? HCPCS Code H0002 covers behavioral health screening to decide eligibility for admission.

Billing individual counseling sessions? HCPCS Code H0004 covers behavioral health counseling and therapy billed per 15 minutes.

Frequently asked questions