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ICD-10-PCS 2027 procedure code

GZ55ZZZIndividual Psychotherapy, Psychodynamic

✓ Valid for 2027

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 GZ55ZZZ

GZ55ZZZ is the ICD-10-PCS code for a individual psychotherapy procedure on the psychodynamic using a none approach with none (qualifier: none). In ICD-10-PCS, individual psychotherapy means treatment of an individual with a mental health disorder by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means to improve functioning or well-being.

In plain terms, this corresponds to Exploratory verbal psychotherapy, the ICD-9-CM procedure title it maps to (94.37).

For a different body part, codes include GZ50ZZZ (interactive), GZ51ZZZ (behavioral), GZ52ZZZ (cognitive), GZ53ZZZ (interpersonal), GZ54ZZZ (psychoanalysis), GZ56ZZZ (supportive) and 2 more.

It doesn't appear in the MS-DRG procedure index, so on its own it doesn't change the DRG assignment.

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

What each character means

1. Section
GMental Health
2. Body System
ZNone
3. Type
5Individual Psychotherapy

Treatment of an individual with a mental health disorder by behavioral, cognitive, psychoanalytic, psychodynamic or psychophysiological means to improve functioning or well-being

4. Qualifier
5Psychodynamic

Exploration of past and present emotional experiences to understand motives and drives using insight-oriented techniques to reduce the undesirable effects of internal conflicts on emotions and behavior

Techniques include empathetic listening, clarifying self-defeating behavior patterns, and exploring adaptive alternatives

5. Qualifier
ZNone
6. Qualifier
ZNone
7. Qualifier
ZNone

Other versions of this procedure

ICD-9-CM equivalent

Converter →
  • 94.37Exploratory verbal psychotherapyapproximate

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 GZ55ZZZ

Is GZ55ZZZ a valid ICD-10-PCS code for 2027?

Yes. GZ55ZZZ is valid for inpatient procedures from October 1, 2026 through September 30, 2027.

What is the ICD-9 procedure code for GZ55ZZZ?

The CMS GEMs map GZ55ZZZ to ICD-9-CM 94.37 (Exploratory verbal psychotherapy).