GZC9ZZZ is a billable ICD-10-PCS procedure code for Biofeedback. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Biofeedback involves provision of information from the monitoring and regulating of physiological processes in conjunction with cognitive-behavioral techniques to improve patient functioning or well-being. The Alphabetic Index lists this code under Biofeedback. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Mental health procedures, NEC.
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 | C | Biofeedback |
| 4 | Qualifier | 9 | Other Biofeedback |
| 5 | Qualifier | Z | None |
| 6 | Qualifier | Z | None |
| 7 | Qualifier | Z | None |
In the ICD-10-PCS Alphabetic Index
The FY 2027 ICD-10-PCS Alphabetic Index refers to GZC9ZZZ as Biofeedback. These index entries lead to this code:
To code biofeedback, open the FY 2027 ICD-10-PCS Alphabetic Index at Biofeedback. The entry lists GZC9ZZZ 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 GZC9ZZZ
Is GZC9ZZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Biofeedback on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for biofeedback?
The ICD-10-PCS Alphabetic Index lists Biofeedback under code GZC9ZZZ, Biofeedback, billable on inpatient claims in fiscal year 2027.
What do the characters in GZC9ZZZ 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 C is the Type (Biofeedback); the 4th character 9 is the Qualifier (Other Biofeedback); 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 GZC9ZZZ?
Under the General Equivalence Mappings, Biofeedback crosswalks to ICD-9-PCS 94.39 (Other individual psychotherapy). The mapping is approximate, so confirm it fits the documentation.
