HCPCS Code H0006: Alcohol and/or Drug Services; Case Management

## **HCPCS code H0006 documentation requirements** Documentation for H0006 must establish that case management services were medically necessary and directly related to the individual’s treatment or recovery plan for substance use disorders. Accurate documentation ensures compliance, supports medical necessity, and demonstrates that comprehensive care, brief intervention services, and ongoing support were provided to promote long-term recovery. Key documentation elements include: - Client identification and diagnosis related to substance use disorder. - Treatment or recovery plan outlining goals, interventions, frequency of contact, and expected treatment outcomes. - Description of case management activities, including drug assessment, coordination of medical, behavioral, and social services, and facilitation of brief intervention services as needed. - Progress notes summarizing client interactions, referrals, and updates on engagement and recovery milestones. - Duration and dates of service, specifying the time spent on eligible activities and the type of ongoing monitoring performed. - Signatures and credentials of the qualified provider or mental health professional delivering the service. In some programs (e.g., Arizona Medicaid), enhanced notes are required when more than four 15-minute units are billed per day.

## **H0006 billing requirements** Billing for H0006 is typically performed on a per-session or per-15-minute unit basis, depending on payer and state-specific guidelines. Providers must verify whether their payer follows time-based billing (e.g., one unit = 15 minutes) or encounter-based billing (one unit per case management session) to ensure proper reimbursement and alignment with healthcare regulations. Following consistent and transparent billing practices helps maintain compliance with payer requirements and reduces claim denials. Key billing considerations: - Services must be rendered by or under the supervision of a licensed behavioral health or substance use disorder professional in accordance with state licensure laws and compliance considerations. - H0006 covers coordination, advocacy, and monitoring activities, but does not include direct therapy or clinical treatment, which should be billed under other H-codes (e.g., H0004 for counseling). - Some payers require prior authorization, especially for extended case management beyond standard treatment episodes. - Verify whether the payer reimburses H0006 under substance use disorder benefits, as Medicaid and commercial plans vary in billing processes and allowable activities. - All billing must follow healthcare regulations and payer policies to avoid overbilling or duplicate submissions and to ensure full compliance with federal and state reimbursement standards. Adhering to accurate billing practices, understanding payer-specific billing processes, and maintaining detailed documentation are essential for achieving proper reimbursement and regulatory compliance when billing HCPCS code H0006.

## **Applicable modifiers** Modifiers identify provider qualifications, service settings, or program types. Their use depends on state or payer policy. - **HF**: Substance abuse program - **HN**: Bachelor’s degree level provider - **HO**: Master’s degree level provider - **HQ**: Group setting - **HM**: Less than bachelor’s degree level provider

## **Other relevant codes** - **H0005**: Alcohol and/or drug services; group counseling by a clinician - **H0007**: Alcohol and/or drug services; crisis intervention (outpatient) - **T1016**: Case management, each 15 minutes