CPT Code 96138: Neuropsychological testing administration, first 30 min

When to Use CPT 96138

Use CPT code 96138 when billing for neuropsychological testing administration, first 30 min. This code is used by licensed therapists (LCSW, LPC, MFT, Psychologist) for outpatient sessions.

Adding CPT 96138 to a Superbill

When generating a superbill with CPT 96138, 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 96138:

Documentation Requirements

Document the specific neuropsychological instruments administered, who performed the testing, and testing conditions.

Common Denial Reasons

• ✗ Administration code billed without corresponding evaluation code (96132/96133)
• ✗ Wrong code used — should use 96136 for psychological (non-neuropsych) testing
• ✗ Administered by unqualified personnel

Reimbursement Expectations

OON reimbursement typically 45-65% of UCR. Expect $36-$104 for the first 30 minutes.