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ICD-10-PCS 2027 procedure code

HZ55ZZZIndividual Psychotherapy for Substance Abuse Treatment, Interactive

✓ Valid for 2027Non-O.R. procedure

Short description: Indiv Psychotherapy for Substance Abuse, Interactive

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 HZ55ZZZ

HZ55ZZZ is the ICD-10-PCS code for a individual psychotherapy procedure on the interactive using a none approach with none (qualifier: none). In ICD-10-PCS, individual psychotherapy means treatment of an individual with addictive behavior by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means.

In plain terms, this corresponds to alcohol rehabilitation and drug rehabilitation, the ICD-9-CM procedure titles it maps to (94.61 and 94.64).

For a different body part, codes include HZ50ZZZ (cognitive), HZ51ZZZ (behavioral), HZ52ZZZ (cognitive-behavioral), HZ53ZZZ (12-step), HZ54ZZZ (interpersonal), HZ56ZZZ (psychoeducation) and 6 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
5Individual Psychotherapy

Treatment of an individual with addictive behavior by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means

4. Qualifier
5Interactive
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 →
  • 94.61Alcohol rehabilitationapproximate
  • 94.64Drug rehabilitationapproximate

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 HZ55ZZZ

Is HZ55ZZZ a valid ICD-10-PCS code for 2027?

Yes. HZ55ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

Is HZ55ZZZ an O.R. procedure?

No. HZ55ZZZ is designated non-O.R. in MS-DRG v44.0.

What DRG does HZ55ZZZ group to?

Depending on the principal diagnosis, HZ55ZZZ can group to MS-DRG 895.

What is the ICD-9 procedure code for HZ55ZZZ?

The CMS GEMs map HZ55ZZZ to ICD-9-CM 94.61 (Alcohol rehabilitation) and 94.64 (Drug rehabilitation).