HZ51ZZZIndividual Psychotherapy for Substance Abuse Treatment, Behavioral
- Billable / Specific Code
HZ51ZZZ is a billable ICD-10-PCS procedure code for Individual Psychotherapy for Substance Abuse Treatment, Behavioral. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 895. The root operation Individual Psychotherapy involves treatment of an individual with addictive behavior by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Psychotherapy for 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 | H | Substance Abuse Treatment |
| 2 | Body System | Z | Substance Abuse Treatment |
| 3 | Type | 5 | Individual Psychotherapy |
| 4 | Qualifier | 1 | Behavioral |
| 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 substance abuse treatment of the behavioral psychotherapy, open the FY 2027 ICD-10-PCS Alphabetic Index at Substance Abuse Treatment, then the subterms Psychotherapy, Behavioral. The entry lists HZ51ZZZ 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.
Questions About HZ51ZZZ
Is HZ51ZZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Individual Psychotherapy for Substance Abuse Treatment, Behavioral on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for substance abuse treatment of the behavioral psychotherapy?
The FY 2027 ICD-10-PCS Alphabetic Index entry Substance Abuse Treatment, Psychotherapy, Behavioral is a direct entry for HZ51ZZZ, Individual Psychotherapy for Substance Abuse Treatment, Behavioral, billable on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in HZ51ZZZ mean?
The code breaks down character by character: the 1st character H is the Section (Substance Abuse Treatment); the 2nd character Z is the Body System (Substance Abuse Treatment); the 3rd character 5 is the Type (Individual Psychotherapy); the 4th character 1 is the Qualifier (Behavioral); 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 MS-DRG does HZ51ZZZ group to?
On an inpatient stay, Individual Psychotherapy for Substance Abuse Treatment, Behavioral maps to MS-DRG 895 (alcohol, Drug Abuse or Dependence with Rehabilitation Therapy). The MS-DRG sets the fixed Medicare payment for the stay.
What is the ICD-9-PCS equivalent of HZ51ZZZ?
Under the General Equivalence Mappings, Individual Psychotherapy for Substance Abuse Treatment, Behavioral crosswalks to ICD-9-PCS 94.61 (Alcohol rehabilitation) and 94.64 (Drug rehabilitation). The mapping is approximate, so confirm it fits the documentation.
