97155 — Adaptive Behavior Treatment with Protocol Modification
ABA services provided by a BCBA that involve direct client contact with protocol modification. This includes BCBA-led therapy sessions, supervision of technicians during client sessions, and real-time modification of treatment protocols based on client data and response.
Time Requirements
Billed per 15-minute unit. Typically 1-4 hours per session. Supervision requirements vary by payer (commonly 10-20% of total direct therapy hours).
Modifiers
| Code | Description |
|---|---|
| 97 | Habilitative services. |
When to Use
- BCBA supervision of technicians during client sessions (direct observation)
- BCBA-led therapy sessions involving protocol modification
- Real-time data analysis and treatment plan adjustments during sessions
- Parent/caregiver training with the client present
When Not to Use
- BCBA supervision without the client present — use 97156
- Direct therapy by a technician following existing protocol — use 97153
- Assessment services — use 97151 or 97152
Common Denial Reasons
- Documentation does not describe protocol modification or supervisory activity
- Units exceed the authorized BCBA supervision hours
- Billed concurrently with 97153 by another provider for the same client at the same time without documentation of overlap rationale
- BCBA credentials not verified with payer
Payer Notes
Most payers authorize BCBA supervision at 10-20% of total direct hours. Some payers require a specific ratio (e.g., 1 hour of 97155 per 10 hours of 97153). Documentation must clearly describe what was modified or assessed during the supervision.
Frequently Asked Questions
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