Summary & Overview
HCPCS G0396: Alcohol/Substance Misuse Assessment and Brief Intervention, 15-30 Min
HCPCS Level II code G0396 denotes a structured assessment for alcohol and/or other substance misuse (excluding tobacco) using a validated instrument such as the AUDIT or DAST, paired with a clinician-delivered brief intervention lasting 15 to 30 minutes. This code supports documentation of early identification and short counseling interventions in ambulatory settings and primary care, where brief screening and intervention can reduce risky substance use and link patients to further care.
Key payers included in this review are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a national-level overview of clinical context and operational considerations for billing G0396, including typical sites of service, common modifier use (listed separately), and how the code fits into behavioral health workflows. The publication also summarizes benchmarking and coverage trends where available and highlights policy updates relevant to screening and brief intervention services.
The report is intended to inform billing managers, revenue cycle staff, clinicians, and policy analysts about the clinical purpose of G0396, how it is applied in ambulatory settings, and the types of documentation and workflow elements that support appropriate coding and coverage. Data not provided in the input are identified as such in the detailed sections.
Billing Code Overview
HCPCS Level II code G0396 represents an alcohol and/or substance (other than tobacco) misuse structured assessment (for example, AUDIT or DAST) and brief intervention lasting 15 to 30 minutes. The service is a combined screening and brief intervention session that documents use of a validated structured tool followed by a clinician-delivered, time-limited intervention addressing risky substance use.
Service type: Behavioral health screening and brief intervention
Typical site of service: Outpatient clinic, primary care office, behavioral health clinic, or other ambulatory settings
Clinical & Coding Specifications
Clinical Context
A 42-year-old primary care patient presents for a routine office visit and screens positive on a standardized alcohol misuse questionnaire (for example, the AUDIT-C). The patient reports increased drinking over the past six months but denies withdrawal or severe functional impairment. The clinician performs a structured assessment (e.g., full AUDIT or DAST) and documents a brief intervention lasting approximately 20 minutes focused on personalized feedback, goal-setting, and referral options. The workflow includes: intake screening by medical assistant, clinician-administered structured assessment and brief counseling, documentation of assessment tool and duration, and arrangement of follow-up or referral to behavioral health or substance use treatment as indicated. Typical sites of service include primary care outpatient clinics, federally qualified health centers, community health centers, and hospital outpatient departments.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
25 | Significant, separately identifiable evaluation and management service by the same physician on the same day | Use when an E/M visit is billed the same day as G0396 and the E/M is distinct from the brief intervention. |