ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group GZ12 includes procedures performed to administer and interpret standardized psychological tests for assessment of intellectual and psychoeducational function. These ICD-10-PCS codes are used for inpatient documentation when standardized testing and formal interpretation are required to evaluate cognitive, learning, or educational needs. Accurate coding within the ICD-10-PCS GZ12 group is essential for proper inpatient reimbursement, as it captures the specific assessment performed and supports clinical documentation accuracy.

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Intellectual And Psychoeducational Psychological Tests Procedure Overview

This procedure group includes the administration and interpretation of standardized psychological tests and measurement instruments focused on intellectual and psychoeducational function. The procedures do not target an anatomical body system but assess cognitive, learning, and educational abilities. Accurate ICD-10-PCS coding ensures inpatient records reflect the specific assessments performed and supports appropriate reimbursement and case mix classification.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
G	Section	Mental Health
Z	Body System	None
1	Operation	Psychological Tests
2	Body Part	Intellectual and Psychoeducational

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ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview

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Intellectual And Psychoeducational Psychological Tests Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
G	Section	Mental Health
Z	Body System	None
1	Operation	Psychological Tests
2	Body Part	Intellectual and Psychoeducational

When to Use

Use a code from this group when inpatient care includes formal psychological testing and the professional interpretation of results for intellectual or psychoeducational evaluation. These codes apply when testing contributes to diagnosis, treatment planning, placement decisions, or educational recommendations.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
GZ12ZZZ	Psychological Tests, Intellectual and Psychoeducational

Typical Clinical Scenarios

An adult with acute changes in cognition and behavior is admitted to the inpatient psychiatric unit after new-onset confusion and disorganized thinking that may reflect delirium, neurocognitive disorder, or an underlying medical condition; formal intellectual and psychoeducational testing is performed by a neuropsychologist to quantify cognitive deficits, guide differential diagnosis, and inform immediate management and discharge planning. Typical codes: GZ12ZZZ
A school-age child with complex learning difficulties and suspected intellectual disability is hospitalized for a multidisciplinary evaluation when outpatient assessment has been inconclusive; comprehensive standardized intellectual and psychoeducational tests are administered and interpreted to determine educational placement, individualized education plan needs, and further therapeutic recommendations. Typical codes: GZ12ZZZ
An inpatient undergoing pre-transplant psychiatric clearance after repeated hospitalizations for treatment-resistant psychiatric illness receives formal psychological testing to assess cognitive capacity, decision-making ability, and educational/functional cognition as part of risk assessment and consent evaluation; the standardized test administration and formal interpretation are documented to support the clinical determination. Typical codes: GZ12ZZZ

Related Codes

GZ10-DEVELOPMENTAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Developmental: Procedure Code Group Overview

GZ11-PERSONALITY-BEHAVIORAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Personality And Behavioral: Procedure Code Group Overview

GZ13-NEUROPSYCHOLOGICAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Neuropsychological: Procedure Code Group Overview

GZ14-NEUROBEHAVIORAL-AND-COGNITIVE-STATUS-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Neurobehavioral And Cognitive Status: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
GZ12ZZZ	Psychological Tests, Intellectual and Psychoeducational

Typical Clinical Scenarios

An adult with acute changes in cognition and behavior is admitted to the inpatient psychiatric unit after new-onset confusion and disorganized thinking that may reflect delirium, neurocognitive disorder, or an underlying medical condition; formal intellectual and psychoeducational testing is performed by a neuropsychologist to quantify cognitive deficits, guide differential diagnosis, and inform immediate management and discharge planning. Typical codes: GZ12ZZZ
A school-age child with complex learning difficulties and suspected intellectual disability is hospitalized for a multidisciplinary evaluation when outpatient assessment has been inconclusive; comprehensive standardized intellectual and psychoeducational tests are administered and interpreted to determine educational placement, individualized education plan needs, and further therapeutic recommendations. Typical codes: GZ12ZZZ
An inpatient undergoing pre-transplant psychiatric clearance after repeated hospitalizations for treatment-resistant psychiatric illness receives formal psychological testing to assess cognitive capacity, decision-making ability, and educational/functional cognition as part of risk assessment and consent evaluation; the standardized test administration and formal interpretation are documented to support the clinical determination. Typical codes: GZ12ZZZ

Related Codes

GZ10-DEVELOPMENTAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Developmental: Procedure Code Group Overview

GZ11-PERSONALITY-BEHAVIORAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Personality And Behavioral: Procedure Code Group Overview

GZ13-NEUROPSYCHOLOGICAL-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Neuropsychological: Procedure Code Group Overview

GZ14-NEUROBEHAVIORAL-AND-COGNITIVE-STATUS-PSYCHOLOGICAL-TESTS

ICD-10-PCS Code For Neurobehavioral And Cognitive Status: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview policy alerts

Intellectual And Psychoeducational Psychological Tests Procedure Overview

Code Attributes

ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Intellectual And Psychoeducational: Procedure Code Group Overview policy alerts

Intellectual And Psychoeducational Psychological Tests Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code represents intellectual and psychoeducational psychological tests?

In which section of ICD-10-PCS is the GZ12 code group located?

When should coders assign `GZ12ZZZ` in inpatient documentation?

What clinical focus do procedures in the GZ12 group assess?

How does accurate coding within the GZ12 group impact reimbursement and records?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

Which ICD-10-PCS code represents intellectual and psychoeducational psychological tests?

In which section of ICD-10-PCS is the GZ12 code group located?

When should coders assign `GZ12ZZZ` in inpatient documentation?

What clinical focus do procedures in the GZ12 group assess?

How does accurate coding within the GZ12 group impact reimbursement and records?

References