Most Medicaid programs define one unit = 15 minutes, but some payers use encounter-based or monthly reimbursement. Always check your payer’s policy.

HCPCS Code H0006: Alcohol and/or Drug Services; Case Management
Read our guide on HCPCS H0006 to learn billing and documentation requirements for substance abuse case management and coordinated behavioral health care.
Use Code
Frequently asked questions
Additional justification may be required when billing exceeds four 15-minute units (1 hour) in a day or when case management intensity is unusually high.
Yes, if those activities (e.g., coordination, advocacy, referral follow-up) are allowed and defined as billable under the payer’s program.
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