2025 ICD-10-CM Procedure Code GZ59ZZZ

Individual Psychotherapy, Psychophysiological

ICD-10-PCS Code:: GZ59ZZZ
ICD-10-PCS Code for:: Individual Psychotherapy, Psychophysiological
Is Billable?: Yes - Valid for Submission
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GZ59ZZZ is a billable procedure code used to specify the performance of individual psychotherapy, psychophysiological. The code is valid for the year 2025 for the submission of HIPAA-covered transactions. The procedure code involves treatment of an individual with a mental health disorder by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means to improve functioning or well-being.

Table of Contents

Code Information
PCS Table
Clinical Classification
Convert to ICD-9-PCS
Other Similar Codes

GZ59ZZZ PCS Table

In an PCS table each code is represented by up seven alphanumeric characters, with each character in the table respresenting different aspects of the procedure. In the table provided below, each row represents an individual character and includes information about the character's position, designation, label, and procedure notes. For this PCS table the procedure code is in the mental health section and is part of the none body system, classified under individual psychotherapy type. The applicable qualifier for this procedure code is psychophysiological.

Position	Designation	Character	Label	Procedures Notes
1	Section	G	Mental Health
2	Body System	Z	None
3	Type	5	Individual Psychotherapy	Involves: Treatment of an individual with a mental health disorder by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means to improve functioning or well-being
4	Qualifier	9	Psychophysiological	Involves: Monitoring and alteration of physiological processes to help the individual associate physiological reactions combined with cognitive and behavioral strategies to gain improved control of these processes to help the individual cope more effectively
5	Qualifier	Z	None	Explanation: The value Z is used for the fifth character to indicate that a specific qualifier does not apply to the procedure.
6	Qualifier	Z	None	Explanation: The value Z is used for the sixth character to indicate that a specific qualifier does not apply to the procedure.
7	Qualifier	Z	None	Explanation: The value Z is used for the seventh character to indicate that a specific qualifier does not apply to the procedure.

Clinical Classification

Psychotherapy for mental health (excluding substance use)

CCSR Code: MHT002

Clinical Domain: Mental Health Therapy MHT contains 5 categories that include procedures related to therapies for mental health, such as electroconvulsive therapy, crisis intervention, and pharmacotherapy for mental health.

Convert to ICD-9-PCS

Below are the ICD-9=PCS code(s) that most closely match this ICD-10-PCS code, based on the General Equivalence Mappings (GEMs). This ICD-10-PCS to ICD-9-PCS crosswalk tool is helpful for coders who need to reference legacy diagnosis codes for audits, historical claims, or approximate code comparisons.

ICD-9-PCS Code

Code: 9434

Approximate Flag: This is an approximate match. The ICD-9-PCS code reflects a close but not exact equivalent of the ICD-10-PCS procedure.

Other ICD-10-PCS Codes Used for Individual Psychotherapy Psychophysiological

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What is ICD-10-PCS?

The ICD-10 Procedure Coding System (ICD-10-PCS) is a catalog of procedural codes used by medical professionals for hospital inpatient healthcare settings. The Centers for Medicare and Medicaid Services (CMS) maintain the catalog in the U.S. releasing yearly updates. The 2025 ICD-10-PCS codes are to be used for discharges occurring from October 1, 2024 through September 30, 2025.

Each ICD-10-PCS code has a structure of seven alphanumeric characters and contains no decimals. The first character defines the major "section". Depending on the "section" the second through seventh characters mean different things.