ICD-10-PCS GZ1 Mental Health: None Psychological Tests

The ICD-10-PCS root operation Psychological Tests (GZ1) refers to the administration and scoring of standardized assessments to evaluate an individual’s mental health or cognitive functioning. This operation is classified under the Mental Health section and is essential for diagnosing or guiding treatment of psychological conditions.

Within this classification, various specialized psychological tests are coded to capture the specific nature of the assessment. For example, Developmental tests (code GZ10ZZZ) measure growth and maturation benchmarks, while Personality and Behavioral tests (GZ11ZZZ) evaluate traits and behaviors. Other important categories include Intellectual and Psychoeducational tests (GZ12ZZZ), which assess cognitive abilities and learning, and Neuropsychological tests (GZ13ZZZ), designed to examine brain function and neurological impairment. Additionally, Neurobehavioral and Cognitive Status tests (GZ14ZZZ) focus on evaluating cognitive deficits related to brain injury or disease. These codes allow precise documentation of psychological testing procedures for clinical and billing purposes.

List of ICD-10-PCS codes used to specify GZ1 - Psychological Tests (the administration and interpretation of standardized psychological tests and measurement instruments for the assessment of psychological function). There are a total of 6 procedure codes in this section.

• GZ1 - Mental Health, Psychological Tests

• 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