HZ9 Pharmacotherapy - Substance Abuse Treatment ICD-10-PCS
The HZ9 code range contains 11 ICD-10-PCS codes for Pharmacotherapy procedures on the substance abuse treatment. 10 of the codes are billable and valid for inpatient claim submission in fiscal year 2027.
Root Operation Definition
Pharmacotherapy: The use of replacement medications for the treatment of addiction.
Codes in the HZ9 Range 11 codes · 10 billable
- HZ9 Substance Abuse Treatment, PharmacotherapyNon-billable header
- HZ90ZZZ Pharmacotherapy for Substance Abuse Treatment, Nicotine Replacement
- HZ91ZZZ Pharmacotherapy for Substance Abuse Treatment, Methadone Maintenance
- HZ92ZZZ Pharmacotherapy for Substance Abuse Treatment, Levo-alpha-acetyl-methadol (LAAM)
- HZ93ZZZ Pharmacotherapy for Substance Abuse Treatment, Antabuse
- HZ94ZZZ Pharmacotherapy for Substance Abuse Treatment, Naltrexone
- HZ95ZZZ Pharmacotherapy for Substance Abuse Treatment, Naloxone
- HZ96ZZZ Pharmacotherapy for Substance Abuse Treatment, Clonidine
- HZ97ZZZ Pharmacotherapy for Substance Abuse Treatment, Bupropion
- HZ98ZZZ Pharmacotherapy for Substance Abuse Treatment, Psychiatric Medication
- HZ99ZZZ Pharmacotherapy for Substance Abuse Treatment, Other Replacement Medication
About the HZ9 Code Range
These procedures use medication to treat substance addiction.
The fourth character identifies the medication or treatment, including nicotine replacement, methadone maintenance, levo-alpha-acetyl-methadol (LAAM), and Antabuse. Other values are naltrexone, naloxone, clonidine, bupropion, psychiatric medication, and other replacement medication. The fifth, sixth, and seventh characters each have None as their only qualifier.
Questions About This Page
How many billable codes are in the HZ9 range?
Of the 11 codes in this range, 10 are billable and valid for inpatient claim submission from October 1, 2026 through September 30, 2027. Table header codes group them but cannot be reported on claims.
What does the HZ9 range classify?
The range classifies Pharmacotherapy procedures, the use of replacement medications for the treatment of addiction, performed on the substance abuse treatment. Each code adds the body part, approach, device, and qualifier in characters four through seven, and links to its own reference page.
Related References
Source: CMS FY 2027 ICD-10-PCS order file and code tables, effective October 1, 2026 through September 30, 2027.
