CPT Code 96137: Psychological testing administration, each additional 30 min

When to Use CPT 96137

Use CPT code 96137 when billing for psychological testing administration, each additional 30 min. This code is used by licensed therapists (LCSW, LPC, MFT, Psychologist) for outpatient sessions.

Adding CPT 96137 to a Superbill

When generating a superbill with CPT 96137, 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 96137:

Documentation Requirements

Document additional administration time and specific tests completed. Justify the total time against the test battery used.

Common Denial Reasons

• ✗ Billed without the primary 96136 code
• ✗ Excessive units that exceed typical administration time for the instruments used
• ✗ Missing documentation of which tests were administered in the additional time

Modifier Notes

Add-on code — must be billed with 96136.

Reimbursement Expectations

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