HZ84ZZZMedication Management for Substance Abuse Treatment, Naltrexone
- Billable / Specific Code
HZ84ZZZ is a billable ICD-10-PCS procedure code for Medication Management for Substance Abuse Treatment, Naltrexone. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027). The root operation Medication Management involves monitoring and adjusting the use of replacement medications for the treatment of addiction. In AHRQ's Clinical Classifications Software (CCSR), this procedure falls under Pharmacotherapy 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 | 8 | Medication Management |
| 4 | Qualifier | 4 | Naltrexone |
| 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 medication management of the naltrexone for substance abuse, open the FY 2027 ICD-10-PCS Alphabetic Index at Medication Management, then the subterms for substance abuse, Naltrexone. The entry lists HZ84ZZZ 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 HZ84ZZZ
Is HZ84ZZZ a billable code?
Yes. This is a complete seven-character ICD-10-PCS code, specific enough to report Medication Management for Substance Abuse Treatment, Naltrexone on inpatient claims from October 1, 2026 through September 30, 2027.
What is the ICD-10-PCS code for medication management of the naltrexone for substance abuse?
The FY 2027 ICD-10-PCS Alphabetic Index entry Medication Management, for substance abuse, Naltrexone is a direct entry for HZ84ZZZ, Medication Management for Substance Abuse Treatment, Naltrexone, billable on inpatient claims from October 1, 2026 through September 30, 2027.
What do the characters in HZ84ZZZ 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 8 is the Type (Medication Management); the 4th character 4 is the Qualifier (Naltrexone); 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 HZ84ZZZ?
Under the General Equivalence Mappings, Medication Management for Substance Abuse Treatment, Naltrexone crosswalks to ICD-9-PCS 94.64 (Drug rehabilitation). The mapping is approximate, so confirm it fits the documentation.
