ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

The International Classification of Diseases, Tenth Revision, Procedure Coding System (ICD-10-PCS) code group GZ51 includes procedures performed to provide individual psychotherapy using behavioral methods. These ICD-10-PCS codes are used for inpatient documentation when a patient receives individual behavioral psychotherapy as part of their mental health treatment during a hospital stay. Accurate coding within the ICD-10-PCS GZ51 group is essential for proper inpatient reimbursement, as it captures the procedure performed and supports clinical documentation accuracy.

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Behavioral Individual Psychotherapy Procedure Overview

Procedures in this group involve delivery of individual psychotherapy using behavioral approaches to treat mental health disorders. These services do not target an anatomical body system but focus on behavioral interventions provided directly to the patient. Accurate coding of these procedures in the inpatient setting supports correct clinical documentation and appropriate reimbursement.

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
G	Section	Mental Health
Z	Body System	None
5	Operation	Individual Psychotherapy
1	Body Part	Behavioral

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ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

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Behavioral Individual Psychotherapy Procedure Overview

Code Attributes

Character	ICD-10-PCS Category	Code Group Details
G	Section	Mental Health
Z	Body System	None
5	Operation	Individual Psychotherapy
1	Body Part	Behavioral

When to Use

Use a code from this group when an inpatient receives individual behavioral psychotherapy as part of their treatment plan. These codes apply when the psychotherapy encounter is documented and billed during the hospital admission.

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
GZ51ZZZ	Individual Psychotherapy, Behavioral

Typical Clinical Scenarios

A young adult admitted to the psychiatric unit after worsening obsessive-compulsive symptoms with failure of outpatient therapy and increasing functional impairment. During the inpatient stay, individual behavioral psychotherapy sessions are provided daily to address maladaptive behaviors, exposure-response prevention techniques, and to stabilize functioning prior to discharge. The behavioral psychotherapy is documented as individual sessions focused on modifying behavior patterns contributing to the acute exacerbation. Typical codes: GZ51ZZZ
A middle-aged patient scheduled for a planned inpatient psychiatric admission for structured behavioral treatment of chronic post-traumatic stress disorder refractory to outpatient care. As part of the planned treatment program, the patient receives individual behavioral psychotherapy targeting avoidance behaviors and coping strategies over several days to facilitate long-term discharge planning. The psychotherapy is documented as individual behavioral interventions provided by the treating clinician. Typical codes: GZ51ZZZ
An older adult readmitted after alteration in mental status and recurrence of severe depression despite recent adjustments in medications, with inpatient care initiated because of risk of self-neglect. During the readmission, individual behavioral psychotherapy is delivered to address maladaptive behaviors, reinforce engagement with safety planning, and guide reintegration of behavioral strategies alongside pharmacologic management. The behavioral psychotherapy is provided as documented individual sessions intended to modify behavior contributing to the clinical deterioration. Typical codes: GZ51ZZZ

ICD-10-PCS Code For Interactive: Procedure Code Group Overview

GZ52-COGNITIVE-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Cognitive: Procedure Code Group Overview

GZ53-INTERPERSONAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Interpersonal: Procedure Code Group Overview

GZ54-PSYCHOANALYSIS-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code for Psychoanalysis: Procedure Code Group Overview

GZ55-PSYCHODYNAMIC-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Psychodynamic: Procedure Code Group Overview

GZ56-SUPPORTIVE-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Supportive: Procedure Code Group Overview

GZ58-COGNITIVE-BEHAVIORAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Cognitive-Behavioral: Procedure Code Group Overview

GZ59-PSYCHOPHYSIOLOGICAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Psychophysiological: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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When to Use

ICD-10-PCS Codes

1 rows

ICD-10-PCS Code	Description
GZ51ZZZ	Individual Psychotherapy, Behavioral

Typical Clinical Scenarios

A young adult admitted to the psychiatric unit after worsening obsessive-compulsive symptoms with failure of outpatient therapy and increasing functional impairment. During the inpatient stay, individual behavioral psychotherapy sessions are provided daily to address maladaptive behaviors, exposure-response prevention techniques, and to stabilize functioning prior to discharge. The behavioral psychotherapy is documented as individual sessions focused on modifying behavior patterns contributing to the acute exacerbation. Typical codes: GZ51ZZZ
A middle-aged patient scheduled for a planned inpatient psychiatric admission for structured behavioral treatment of chronic post-traumatic stress disorder refractory to outpatient care. As part of the planned treatment program, the patient receives individual behavioral psychotherapy targeting avoidance behaviors and coping strategies over several days to facilitate long-term discharge planning. The psychotherapy is documented as individual behavioral interventions provided by the treating clinician. Typical codes: GZ51ZZZ
An older adult readmitted after alteration in mental status and recurrence of severe depression despite recent adjustments in medications, with inpatient care initiated because of risk of self-neglect. During the readmission, individual behavioral psychotherapy is delivered to address maladaptive behaviors, reinforce engagement with safety planning, and guide reintegration of behavioral strategies alongside pharmacologic management. The behavioral psychotherapy is provided as documented individual sessions intended to modify behavior contributing to the clinical deterioration. Typical codes: GZ51ZZZ

ICD-10-PCS Code For Interactive: Procedure Code Group Overview

GZ52-COGNITIVE-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Cognitive: Procedure Code Group Overview

GZ53-INTERPERSONAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Interpersonal: Procedure Code Group Overview

GZ54-PSYCHOANALYSIS-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code for Psychoanalysis: Procedure Code Group Overview

GZ55-PSYCHODYNAMIC-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Psychodynamic: Procedure Code Group Overview

GZ56-SUPPORTIVE-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Supportive: Procedure Code Group Overview

GZ58-COGNITIVE-BEHAVIORAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Cognitive-Behavioral: Procedure Code Group Overview

GZ59-PSYCHOPHYSIOLOGICAL-INDIVIDUAL-PSYCHOTHERAPY

ICD-10-PCS Code For Psychophysiological: Procedure Code Group Overview

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

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ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

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Behavioral Individual Psychotherapy Procedure Overview

Code Attributes

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ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

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Behavioral Individual Psychotherapy Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

References

ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Behavioral: Procedure Code Group Overview policy alerts

Behavioral Individual Psychotherapy Procedure Overview

Code Attributes

ICD-10-PCS Code For Behavioral: Procedure Code Group Overview

Sign up for ICD-10-PCS Code For Behavioral: Procedure Code Group Overview policy alerts

Behavioral Individual Psychotherapy Procedure Overview

Code Attributes

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What does the ICD-10-PCS code group GZ51 represent?

Which specific ICD-10-PCS code is listed in this group?

What are the key code attributes for GZ51 procedures?

How does accurate coding within the GZ51 group impact reimbursement?

Are there related DRGs associated with the GZ51 code group?

References

When to Use

ICD-10-PCS Codes

Typical Clinical Scenarios

Related Codes

What does the ICD-10-PCS code group GZ51 represent?

Which specific ICD-10-PCS code is listed in this group?

What are the key code attributes for GZ51 procedures?

How does accurate coding within the GZ51 group impact reimbursement?

Are there related DRGs associated with the GZ51 code group?

References