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ICD-10-PCS 2027 procedure code

HZ42ZZZGroup Counseling for Substance Abuse Treatment, Cognitive-Behavioral

✓ Valid for 2027Non-O.R. procedure

Short description: Group Counsel for Substance Abuse, Cognitive Behavioral

Code unchanged since ICD-10-PCS took effect on October 1, 2015. Source: official FY2027 ICD-10-PCS release from CMS. Page updated September 29, 2026. About our data

About HZ42ZZZ

HZ42ZZZ is the ICD-10-PCS code for a group counseling procedure on the cognitive-behavioral using a none approach with none (qualifier: none). In ICD-10-PCS, group counseling means the application of psychological methods to treat two or more individuals with addictive behavior.

In plain terms, this corresponds to drug addiction counseling and alcoholism counseling, the ICD-9-CM procedure titles it maps to (94.45 and 94.46).

For a different body part, codes include HZ40ZZZ (cognitive), HZ41ZZZ (behavioral), HZ43ZZZ (12-step), HZ44ZZZ (interpersonal), HZ45ZZZ (vocational), HZ46ZZZ (psychoeducation) and 5 more.

It is a non-O.R. procedure that is part of the MS-DRG logic for DRG 895 (Alcohol, Drug Abuse or Dependence with Rehabilitation Therapy), under the surgical category “Alcohol, Drug Abuse or Dependence”.

It has been valid since ICD-10-PCS took effect on October 1, 2015.

What each character means

1. Section
HSubstance Abuse Treatment
2. Body System
ZNone
3. Type
4Group Counseling

The application of psychological methods to treat two or more individuals with addictive behavior

Provides structured group counseling sessions and healing power through the connection with others

4. Qualifier
2Cognitive-Behavioral
5. Qualifier
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

MS-DRG v44.0 grouping

All DRGs →

Surgical MS-DRGs this procedure can group to, depending on the principal diagnosis's MDC.

MDC 20 · Alcohol/Drug Use and Alcohol/Drug Induced Organic Mental Disorders · Alcohol, Drug Abuse or Dependence

ICD-9-CM equivalent

Converter →
  • 94.45Drug addiction counselingapproximate
  • 94.46Alcoholism counselingapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about HZ42ZZZ

Is HZ42ZZZ a valid ICD-10-PCS code for 2027?

Yes. HZ42ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is HZ42ZZZ an O.R. procedure?

No. HZ42ZZZ is designated non-O.R. in MS-DRG v44.0.

What DRG does HZ42ZZZ group to?

Depending on the principal diagnosis, HZ42ZZZ can group to MS-DRG 895.

What is the ICD-9 procedure code for HZ42ZZZ?

The CMS GEMs map HZ42ZZZ to ICD-9-CM 94.45 (Drug addiction counseling) and 94.46 (Alcoholism counseling).