Psychological Tests, Neuropsychological

ValidICD-10-PCS procedure code.

Valid for claims with a date of service in the current code year.

Valid FY2016 onwards.

What has happened to this code

Every change the publisher made, from 2014 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

FY2014 Added to the draft code set draft Psychological Tests, Neuropsychological

What this code says

Each character is read in its own position, so the same letter means different things in different places. Definitions are CMS's own.

3. Root operation Psychological Tests

The administration and interpretation of standardized psychological tests and measurement instruments for the assessment of psychological function

4. Qualifier Neuropsychological

Thinking, reasoning and judgment, acquired knowledge, attention, memory, visual spatial abilities, language functions, planning

Codes in the same group

Code	Description	Status
GZ10ZZZ	Psychological Tests, Developmental	Valid
GZ11ZZZ	Psychological Tests, Personality and Behavioral	Valid
GZ12ZZZ	Psychological Tests, Intellectual and Psychoeducational	Valid
GZ14ZZZ	Psychological Tests, Neurobehavioral and Cognitive Status	Valid

At a glance

Code: GZ13ZZZ
System: ICD-10-PCS
Status: Valid
Valid: FY2016 onwards
In the code set: FY2016 onwards
Part of: GZ1

Where this code sits

Section G Mental Health
Body system GZ None
Category GZ1 Mental Health, Psychological Tests
This code GZ13ZZZ Psychological Tests, Neuropsychological

What each character means

G Section Mental Health
Z Body system None
1 Root operation Psychological Tests
3 Qualifier Neuropsychological
Z Qualifier None
Z Qualifier None
Z Qualifier None

Source

ICD-10-PCS FY2027 code set, published by the Centers for Medicare and Medicaid Services (CMS).

Effective October 1, 2026.

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