GZ59ZZZIndividual Psychotherapy, Psychophysiological
- Billable / Specific Code
GZ59ZZZ is a billable ICD-10-PCS procedure code for Individual Psychotherapy, Psychophysiological. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation 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. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Psychotherapy for mental health (excluding substance use).
Code Identity
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.
| Position | Designation | Value | Meaning |
|---|---|---|---|
| 1 | Section | G | Mental Health |
| 2 | Body System | Z | None |
| 3 | Type | 5 | Individual Psychotherapy |
| 4 | Qualifier | 9 | Psychophysiological |
| 5 | Qualifier | Z | None |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
These FY 2027 ICD-10-PCS Alphabetic Index entries lead to this code:
To code psychotherapy of the individual, open the FY 2027 ICD-10-PCS Alphabetic Index at Psychotherapy, then the subterm Individual. The entry lists GZ59ZZZ directly as a complete, billable code.
Clinical Classification (CCSR)
AHRQ groups this procedure code into these clinical categories.
Convert to ICD-9-PCS
Closest ICD-9-PCS equivalents for this code under the General Equivalence Mappings.
Similar Procedure Codes
Questions About GZ59ZZZ
Is GZ59ZZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Individual Psychotherapy, Psychophysiological on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for psychotherapy of the individual?
The FY 2027 ICD-10-PCS Alphabetic Index entry Psychotherapy, Individual is a direct entry for GZ59ZZZ, Individual Psychotherapy, Psychophysiological, billable on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in GZ59ZZZ 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 5 is the Type (Individual Psychotherapy); the 4th character 9 is the Qualifier (Psychophysiological); 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 GZ59ZZZ?
Under the General Equivalence Mappings, Individual Psychotherapy, Psychophysiological crosswalks to ICD-9-PCS 94.34 (Individual therapy for psychosexual dysfunction). The mapping is approximate, so confirm it fits the documentation.
