Group psychotherapy is one of the most well-established and widely used treatment modalities in mental health care, offering unique therapeutic benefits that individual therapy cannot replicate.

CPT code 90853 is the designated billing code for group psychotherapy other than multiple-family group therapy, making it the primary code for the vast majority of therapeutic group sessions.

Whether you facilitate process groups, psychoeducational groups, DBT skills groups, or substance use recovery groups, understanding 90853 is essential for accurate billing and compliant documentation.

Key Takeaways

• Clinical Evidence: Group psychotherapy has a robust evidence base across multiple diagnoses and populations. Meta-analyses consistently demonstrate that group therapy produces outcomes comparable to individual therapy for many conditions, with the added benefits of interpersonal learning, normalization, and peer support.

• Practical Implementation: Individualize your group therapy documentation for each patient. While shared group observations are acceptable, each patient’s note must connect the session content to their specific treatment goals and demonstrate medical necessity. This is the most common area of billing non-compliance with 90853.

• Professional Development: Group therapy documentation is time-intensive because of the need to individualize notes for each participant. Berries AI can capture group session content and generate individualized progress notes for each patient, dramatically reducing post-group documentation time while maintaining the clinical quality and specificity payers require.

What CPT Code 90853 Covers

CPT 90853 is defined as group psychotherapy, other than of a multiple-family group. This code covers therapeutic group sessions facilitated by a qualified mental health professional in which multiple patients — who are not family members of one another — participate in structured psychotherapy together. The group members typically share common experiences, symptoms, diagnoses, or therapeutic goals.

The code is distinguished from multiple-family group therapy (90849), which involves family units rather than unrelated individuals. It is also distinct from support groups, educational classes, and skill-building workshops that do not constitute psychotherapy, which should not be billed under 90853.

Common Clinical Applications

• Process-oriented therapy groups addressing depression, anxiety, grief, trauma, or interpersonal difficulties

• Cognitive-behavioral therapy (CBT) groups targeting specific conditions such as social anxiety, OCD, or chronic pain

• Dialectical behavior therapy (DBT) skills training groups for patients with emotion regulation difficulties or borderline personality disorder

• Substance use recovery groups incorporating motivational enhancement, relapse prevention, or 12-step facilitation approaches

• Specialized population groups such as groups for veterans, adolescents, trauma survivors, or individuals with eating disorders

Billing Rules and Key Considerations

Group Size and Composition

Group psychotherapy under 90853 typically includes at least three patients and one facilitating clinician. The group members should be unrelated individuals; if multiple family members are present working on shared family dynamics, consider whether 90849 may be more appropriate. Each patient in the group is billed individually for the session.

Time and Session Structure

CPT 90853 does not have a strictly defined time band like individual psychotherapy codes. Group sessions commonly range from 60 to 90 minutes, though shorter and longer formats are used depending on the clinical setting and population. Documentation should always include session start and stop times.

Add-On Codes and Modifiers

• Interactive complexity (+90785): This add-on code may be billed in conjunction with 90853 when specific communication factors complicate service delivery, such as the use of play equipment, physical devices, or language interpreters

• Telehealth modifiers: Group therapy via telehealth is reimbursable by many payers with appropriate modifiers. Verify payer-specific telehealth group therapy policies.

• Same-day billing: 90853 can generally be billed on the same date as individual psychotherapy codes for the same patient, provided the services are distinct encounters with separate documentation and non-overlapping times.

Documentation Requirements

Group psychotherapy documentation must balance the documentation of group-level processes with individualized clinical notes for each patient. Your documentation should include:

• The group therapy topic, therapeutic approach, and specific interventions used during the session

• Group process observations, including themes, dynamics, and interactions among members

• Each individual patient’s participation, responses, and clinical progress during the session

• Connection to each patient’s treatment plan, treatment goals, and diagnosis

• Session start and stop times, and the names or number of participants

A common documentation error is using a single generic group note for all patients. While group-level observations may be shared, each patient’s note must include individualized clinical content that justifies the medical necessity of their participation in the group.

Reimbursement Overview

Reimbursement rates for CPT 90853 are generally lower per patient than individual psychotherapy codes, reflecting the shared nature of the clinician’s time. Medicare reimbursement typically ranges from $28 to $35 per patient per session, while commercial payers may reimburse $40 to $80 or more depending on the contract, region, and provider credentials. Despite the lower per-patient rate, group therapy can be a financially sustainable practice model when groups are consistently filled to their intended capacity.

What 90853 Does Not Cover

• Support groups that do not involve psychotherapeutic intervention by a qualified mental health professional

• Educational classes or psychoeducational workshops without a therapeutic component

• Skill-building sessions that are not conducted within a psychotherapy framework

• Multiple-family group sessions, which should be billed under 90849

• Group art therapy, music therapy, or recreational therapy unless integrated as a core component of the group psychotherapy session

Frequently Asked Questions

What is the minimum and maximum group size for billing 90853?

While CPT guidelines do not specify a rigid minimum or maximum group size, most payers and clinical standards consider a minimum of three patients appropriate for group psychotherapy. Maximum group sizes are typically guided by clinical best practices and the specific therapeutic approach; most therapy groups include 6–12 members. Some payers may have specific group size requirements, so verify with individual carriers.

Can I bill 90853 for a DBT skills group?

Yes, if the DBT skills group is conducted by a qualified mental health professional and involves psychotherapeutic elements beyond simple skills instruction. DBT skills groups that include therapeutic processing, application of skills to individual situations, and clinician-facilitated group interaction generally qualify for 90853. Purely didactic skills workshops without a psychotherapy component may not qualify.

How should I handle documentation when a patient misses a group session?

You may only bill 90853 for patients who actually attended the session. For patients who miss a group, document the absence in their chart and note any follow-up plans. Do not bill 90853 for patients who were not present, even if they were expected to attend.

Can co-facilitators both bill for the same group session?

Generally, only one clinician can bill 90853 per patient per group session. If two clinicians co-facilitate, typically only the primary facilitator bills for the service. Some payers may have exceptions or specific policies for co-facilitated groups, particularly in training settings. Clarify with your payer before co-billing.

Streamline Your Documentation with Berries AI

Documenting crisis sessions, family therapy, and group psychotherapy demands precision and speed. Berries AI is the only AI scribe built exclusively for mental health professionals, designed to capture the clinical nuance of every session type and generate comprehensive, insurance-ready notes in seconds.

Whether you are conducting a crisis intervention that requires detailed safety planning documentation, running a family session with complex relational dynamics, or leading group therapy with multiple participants, Berries adapts to your clinical workflow and documentation style. Our HIPAA-compliant platform reduces documentation time from 20–30 minutes to 2–3 minutes per session, letting you focus on what matters most: your clients.

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Disclaimer: This article is for educational purposes and professional development only. It does not constitute clinical supervision or replace professional judgment in therapeutic practice. Always verify current CPT coding guidelines and payer-specific requirements before billing.