GZ1 Psychological Tests - None ICD-10-PCS
The GZ1 code range contains 6 ICD-10-PCS codes for Psychological Tests procedures on the none. 5 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Psychological Tests: The administration and interpretation of standardized psychological tests and measurement instruments for the assessment of psychological function.
Codes in the GZ1 Range 6 codes · 5 billable
- GZ1 Mental Health, Psychological TestsNon-billable header
- GZ10ZZZ Psychological Tests, Developmental
- GZ11ZZZ Psychological Tests, Personality and Behavioral
- GZ12ZZZ Psychological Tests, Intellectual and Psychoeducational
- GZ13ZZZ Psychological Tests, Neuropsychological
- GZ14ZZZ Psychological Tests, Neurobehavioral and Cognitive Status
About the GZ1 Code Range
These procedures administer and interpret standardized tests and measurement tools to assess psychological functioning.
The fourth character identifies the focus: developmental skills, personality and behavior, intellectual ability and learning, or thinking and memory. It also distinguishes neurobehavioral and cognitive status assessment, which includes interviews and observation. The fifth, sixth and seventh characters each use the None qualifier.
Questions About This Page
How many billable codes are in the GZ1 range?
Of the 6 codes in this range, 5 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. Table header codes group them but cannot be reported on claims.
What does the GZ1 range classify?
The range classifies Psychological Tests procedures, the administration and interpretation of standardized psychological tests and measurement instruments for the assessment of psychological function, performed on the none. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
