96133

Neuropsychological Testing Evaluation Services, Each Additional Hour

CPT code 96133 is an add-on code representing the second and subsequent hours of neuropsychological testing evaluation services. This specific code is utilized when a physician or other qualified healthcare professional (QHP) spends significant time beyond the initial hour, which is represented by the primary code 96132, performing highly complex cognitive tasks related to a patient's neuropsychological status. The evaluation process is fundamentally distinct from the administration of tests; while codes 96136 through 96139 cover the actual execution and scoring of psychological or neuropsychological tests, 96133 focuses on the professional interpretation and synthesis of those results. The professional's work includes several critical components: the integration of patient data from multiple sources such as medical records, developmental history, and clinical observations; the interpretation of standardized test results in the context of the patient's individual baseline and demographic norms; and complex clinical decision-making to differentiate between various neurological or psychiatric conditions. Furthermore, this code encompasses the time required for treatment planning, which involves formulating specific recommendations for rehabilitation, educational accommodations, or pharmacological interventions based on the testing profile. It also includes the preparation of a comprehensive written report and the time spent providing interactive feedback to the patient, their family members, or caregivers. Because 96133 is a time-based code, clinicians must carefully document the total time spent on these evaluation activities across one or more days. The use of this code is appropriate when the complexity of the case or the volume of data necessitates more than the initial hour of professional evaluation time, requiring at least 31 minutes of the second hour to be billed.

Clinical Indications

  • Suspected dementia or Alzheimer's disease
  • Traumatic brain injury (TBI) and post-concussion syndrome
  • Stroke or cerebrovascular accidents resulting in cognitive deficits
  • Attention-Deficit/Hyperactivity Disorder (ADHD) in complex presentations
  • Specific learning disorders and developmental delays
  • Multiple Sclerosis (MS) or other demyelinating diseases
  • Parkinson's disease and other movement disorders
  • Epilepsy or seizure disorders affecting cognitive function
  • Neurocognitive impact of chronic substance abuse
  • Pre-surgical evaluation for neurosurgical procedures
  • Differential diagnosis between psychiatric disorders and organic brain syndromes

Procedure Steps

  1. Collection and review of the patient's clinical history and medical records.
  2. Integration of clinical observations gathered during the testing sessions.
  3. Review of standardized scores and qualitative data from neuropsychological testing.
  4. Comparison of test data against established normative databases.
  5. Performance of differential diagnosis through clinical synthesis of all available data.
  6. Development of a personalized treatment plan and specific clinical recommendations.
  7. Drafting of a comprehensive neuropsychological evaluation report.
  8. Conducting an interactive feedback session with the patient or authorized representatives.

Coding Guidelines

  • Code 96133 is an add-on code and must be reported in conjunction with the primary code 96132.
  • 96133 cannot be billed alone; it represents each additional hour beyond the first 60 minutes.
  • Use 96133 for time spent by a physician or QHP; it is not for technician time.
  • Time spent on 96133 includes interpretation, report preparation, and feedback, but excludes test administration and scoring.
  • Following CPT time rules, at least 31 minutes must be spent to bill the first unit of 96133.
  • Do not report 96132/96133 for the same time spent on administration codes 96136-96139.
  • Evaluation services can be performed on a different day than the administration of the tests.
  • If evaluation is performed across multiple days, aggregate the total time and report the appropriate units.

Associated ICD-10 Codes