GZ10ZZZPsychological Tests, Developmental

  • Billable / Specific Code
ICD-10-PCS GZ10ZZZ
CMS Source: FY 2027 ICD-10-PCS dataset. Effective Oct 1, 2026 – Sep 30, 2027.FacebookXLinkedInPrint

GZ10ZZZ is a billable ICD-10-PCS procedure code for Psychological Tests, Developmental. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Psychological Tests involves the administration and interpretation of standardized psychological tests and measurement instruments for the assessment of psychological function. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Mental health procedures, NEC.

Code Identity

ICD-10-PCS Code
GZ10ZZZ
Billable Status
Yes — Valid for Submission
Code Describes
Psychological Tests, Developmental
Short Description
Psychological Tests, Developmental
Same as the full description in the CMS dataset.
Parent Code
GZ1 Mental Health, Psychological Tests

PCS Table Breakdown

Each ICD-10-PCS code is built from seven characters, each an axis of the procedure. Hover or tap the icons for the official CMS definitions.

PositionDesignationValueMeaning
1SectionGMental Health
2Body SystemZNone
3Type1Psychological Tests
4Qualifier0Developmental
5QualifierZNone
6QualifierZNone
7QualifierZNone

In the ICD-10-PCS Alphabetic Index

These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:

Testing, Mental health
Direct entry for this code
Psychological Tests, Developmental
Direct entry for this code

To code testing of the mental health, open the FY 2027 ICD-10-PCS Alphabetic Index at Testing, then the subterm Mental health. The entry lists GZ10ZZZ directly as a complete, billable code.

Browse the full ICD-10-PCS Alphabetic Index →

Clinical Classification (CCSR)

AHRQ groups this procedure code into these clinical categories.

MHT005
Mental health procedures, NEC
Clinical domain: Mental Health Therapy

Convert to ICD-9-PCS

Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.

94.02
Administration of psychologic test
Approximate match.

Similar Procedure Codes

Questions About GZ10ZZZ

Is GZ10ZZZ a billable code?

Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Psychological Tests, Developmental on inpatient claims from October 1, 2026 through September 30, 2027.

What is the ICD-10-PCS code for testing of the mental health?

The FY 2027 ICD-10-PCS Alphabetic Index entry Testing, Mental health is a direct entry for GZ10ZZZ, Psychological Tests, Developmental, billable on inpatient claims from October 1, 2026 through September 30, 2027.

What do the characters in GZ10ZZZ mean?

The code breaks down character by character: the 1st character G is the Section (Mental Health); the 2nd character Z is the Body System (None); the 3rd character 1 is the Type (Psychological Tests); the 4th character 0 is the Qualifier (Developmental); the 5th character Z is the Qualifier (None); the 6th character Z is the Qualifier (None); the 7th character Z is the Qualifier (None).

What is the ICD-9-PCS equivalent of GZ10ZZZ?

Under the General Equivalence Mappings, Psychological Tests, Developmental crosswalks to ICD-9-PCS 94.02 (Administration of psychologic test). The mapping is approximate, so confirm it fits the documentation.