CPT Code 96151: Health behavior assessment, each additional 30 min

When to Use CPT 96151

Use CPT code 96151 when billing for health behavior assessment, each additional 30 min. This code is used by licensed therapists (LCSW, LPC, MFT, Psychologist) for outpatient sessions.

Adding CPT 96151 to a Superbill

When generating a superbill with CPT 96151, include the ICD-10 diagnosis code, date of service, fee charged, amount paid, and your NPI number. Superbilled pre-fills common therapy CPT codes automatically.

Common ICD-10 Pairings

These diagnosis codes are frequently used alongside CPT 96151:

Documentation Requirements

Document additional assessment time and justify the clinical need for extended evaluation beyond the first 30 minutes.

Common Denial Reasons

• ✗ Billed without the primary 96150 code
• ✗ Total assessment time exceeds what is clinically justified
• ✗ Not linked to a medical diagnosis

Modifier Notes

Add-on code — must be billed with 96150.

Reimbursement Expectations

OON reimbursement typically 45-60% of UCR. Expect $27-$72 per additional 30 minutes.