Mental health billing can feel complicated even when the clinical work itself is straightforward. A therapist may spend an hour helping a client manage anxiety, depression, trauma, or a personal crisis, yet choosing the correct CPT code for mental health services requires attention to the type of service, duration, medical necessity, documentation, provider qualifications, payer requirements, and whether psychotherapy was provided with or without an evaluation and management service.

For therapists, psychologists, psychiatrists, psychiatric nurse practitioners, social workers, and other behavioral health providers, understanding mental health CPT codes 2026 is an important part of running an efficient practice and reducing claim denials.

This guide explains the most commonly used mental health billing codes, including psychotherapy CPT codes such as 90832, 90834, 90837, 90839, and 90840, diagnostic evaluation codes 90791 and 90792, family and group therapy codes, and relevant E/M codes. It also answers common questions such as what are the CPT codes for mental health therapy, how many CPT codes are there for 2026, what are 5 common CPT codes, and what is the difference between CPT 99232 and 99233.

Important: CPT coding rules, Medicare policies, Medicaid requirements, and commercial payer policies can differ. Always verify the current CPT code descriptor and the specific payer’s billing policy before submitting a claim.

What Are Mental Health CPT Codes?

CPT codes, or Current Procedural Terminology codes, are five-digit codes used to describe medical and behavioral health services provided by healthcare professionals.

The American Medical Association maintains the CPT code set. The AMA states that the CPT system contains more than 11,000 codes, covering medical services and procedures across healthcare.

There isn’t a separate, fixed list containing only “mental health CPT codes.” Instead, behavioral health providers use codes from several CPT sections depending on what service was performed.

For example:

• 90791 – Psychiatric diagnostic evaluation
• 90792 – Psychiatric diagnostic evaluation with medical services
• 90832 – Individual psychotherapy
• 90834 – Individual psychotherapy
• 90837 – Individual psychotherapy
• 90839 – Psychotherapy for crisis
• 90840 – Additional crisis psychotherapy time
• 90846 – Family psychotherapy without the patient present
• 90847 – Family psychotherapy with the patient present
• 90853 – Group psychotherapy
• 90833, 90836, 90838 – Psychotherapy add-on codes used with appropriate E/M services

CMS guidance confirms that 90832, 90834, and 90837 are psychotherapy codes without medical evaluation and management, while 90833, 90836, and 90838 are psychotherapy add-on codes used with E/M services.

What Are the CPT Codes for Mental Health Therapy?

The most important CPT codes for mental health therapy are generally the psychotherapy codes.

90832 – Psychotherapy, 30 minutes

CPT 90832 is used for individual psychotherapy when the documented service falls within the applicable CPT time range.

It may be appropriate for shorter therapy sessions when the clinical service and documentation support the code.

90834 – Psychotherapy, 45 minutes

CPT 90834 is one of the most commonly used mental health billing codes.

It generally represents an individual psychotherapy session in the 38–52 minute range. HHS lists 90834 as psychotherapy without medical evaluation and management.

90837 – Psychotherapy, 60 minutes

CPT 90837 is commonly used for longer individual psychotherapy sessions. HHS identifies 90837 as psychotherapy without medical evaluation and management for sessions of 53 minutes or more.

However, therapists should not automatically select 90837 simply because a client was scheduled for a one-hour appointment. The documentation should support the actual service and time requirements, along with medical necessity and payer rules.

90839 – Psychotherapy for Crisis

CPT 90839 is used for psychotherapy for a crisis, generally covering the first 60 minutes.

This code is different from ordinary psychotherapy because it is intended for situations involving a crisis that requires immediate assessment and intervention.

CMS specifically identifies 90839 as the psychotherapy-for-crisis code for the first 60 minutes.

90840 – Additional Crisis Psychotherapy

CPT 90840 is used for each additional 30 minutes of crisis psychotherapy after the initial crisis service.

Importantly, 90840 is not a standalone replacement for 90839. CMS states that 90839 and 90840 are crisis psychotherapy codes and that 90840 is reported for additional time.

Quick Mental Health CPT Codes 2026 Cheat Sheet

This table is a practical overview, not a substitute for the complete CPT codebook or payer-specific rules.

90791 vs. 90792: What Is the Difference?

Two important mental health CPT codes used for diagnostic evaluations are 90791 and 90792.

CPT 90791

90791 is generally used for a psychiatric diagnostic evaluation without medical services.

It may be used when the provider performs a comprehensive behavioral health assessment, gathers relevant clinical information, evaluates symptoms, develops diagnostic impressions, and establishes a treatment plan.

CPT 90792

90792 is a psychiatric diagnostic evaluation with medical services.

This distinction matters because 90792 involves medical services in addition to the psychiatric diagnostic evaluation.

Providers should never select 90792 merely because it potentially reimburses more. The service actually performed and documented must support the code.

90832 vs. 90834 vs. 90837

One of the most common questions in behavioral health billing is:

Which psychotherapy CPT code should I use: 90832, 90834, or 90837?

The key difference is primarily the length and nature of the psychotherapy service.

90832

Best suited for an appropriately documented shorter psychotherapy encounter.

90834

Used for a mid-length individual psychotherapy session. It is commonly associated with approximately 45 minutes of psychotherapy.

90837

Used for longer individual psychotherapy sessions, generally associated with approximately 60 minutes.

HHS lists the commonly referenced time ranges as:

• 90832: 16–37 minutes
• 90834: 38–52 minutes
• 90837: 53 minutes or more

However, do not choose a CPT code solely from the appointment slot on the calendar. Documentation should support the service actually provided, and individual insurance companies can impose additional requirements.

What Are 5 Common CPT Codes?

If you’re looking for the 5 most common CPT codes for mental health providers, a practical list is:

1. 90837 – Individual Psychotherapy

Frequently used for longer individual psychotherapy sessions.

2. 90834 – Individual Psychotherapy

A very common code for standard psychotherapy sessions.

3. 90791 – Psychiatric Diagnostic Evaluation

Often used for an initial behavioral health diagnostic evaluation.

4. 90847 – Family Psychotherapy

Used when family psychotherapy is provided with the patient present.

5. 90853 – Group Psychotherapy

Used for medically necessary group psychotherapy.

The “top five” can vary considerably by specialty. For example, a psychiatrist who regularly provides medication management may use E/M codes more frequently than a psychologist or LCSW.

Family Therapy CPT Codes

Mental health treatment isn’t always limited to individual sessions.

Two commonly used family psychotherapy codes are:

CPT 90846

Family psychotherapy without the patient present.

CPT 90847

Family psychotherapy with the patient present.

CMS specifically distinguishes 90846 and 90847 from family history-taking or ordinary E/M counseling.

The clinical purpose of the session should be clearly documented. Simply having a family member participate in an appointment does not automatically mean that family psychotherapy should be billed.

CPT 90853: Group Psychotherapy

CPT 90853 is used for group psychotherapy.

Group therapy can be an important treatment option for:

• Depression
• Anxiety disorders
• Substance use disorders
• Trauma-related conditions
• Grief
• Anger management
• Social skills difficulties
• Behavioral health support programs

Documentation should explain the clinical purpose of the group, interventions provided, patient participation, progress, and medical necessity.

CMS identifies 90853 as the group psychotherapy code and notes that interactive complexity may sometimes be reported with it when appropriate.

Crisis Therapy CPT Codes: 90839 and 90840

Crisis psychotherapy deserves special attention because providers sometimes confuse it with a longer routine therapy session.

90839 is not simply “90837 but longer.”

CPT 90839 is specifically for psychotherapy for crisis, while 90840 represents additional crisis psychotherapy time.

For example, a routine 90-minute therapy appointment does not automatically become crisis psychotherapy.

The medical record should establish why the encounter qualified as crisis intervention.

CMS states that 90839 and 90840 are reported as standalone crisis psychotherapy codes rather than alongside the ordinary psychotherapy codes 90832–90838 for the same service.

Psychotherapy With E/M: 90833, 90836 and 90838

Some behavioral health providers perform both psychotherapy and an evaluation and management service during the same encounter.

The relevant psychotherapy add-on codes include:

• 90833
• 90836
• 90838

These are not replacements for the E/M code.

Instead, they are psychotherapy add-on codes used with an appropriate E/M service when the requirements for reporting both services are met.

CMS emphasizes that when E/M and psychotherapy are reported on the same date, the two services must be significant and separately identifiable.

This is an important area for psychiatrists and other prescribing behavioral health providers because simply spending additional time talking with a patient does not automatically justify reporting psychotherapy separately.

How Many CPT Codes Are There for 2026?

A common search question is:

“How many CPT codes are there for 2026?”

The answer depends on what you mean by “CPT codes.”

There is not a separate fixed number of mental health CPT codes called the 2026 CPT code set.

The complete CPT code set contains more than 11,000 codes, covering healthcare services across many specialties.

For 2026 specifically, the AMA announced 288 new CPT codes, along with 84 deletions and 46 revisions, for a total of 418 changes in the 2026 code set.

For a mental health practice, you generally don’t need to learn thousands of codes. Your focus should be on the codes relevant to your specialty, services, payer contracts, place of service, provider credentials, and documentation requirements.

What Is the Difference Between CPT 99232 and 99233?

This is an important question, particularly for providers working in inpatient psychiatry, behavioral health hospitals, and hospital-based mental health services.

Both 99232 and 99233 are subsequent hospital inpatient or observation care codes.

CPT 99232

99232 represents subsequent hospital inpatient or observation care requiring a moderate level of medical decision-making.

When selected based on total time, the 2026 threshold is 35 minutes or more on the date of the encounter.

CPT 99233

99233 represents subsequent hospital inpatient or observation care requiring a high level of medical decision-making.

When selected based on total time, the 2026 threshold is 50 minutes or more.

99232 vs. 99233 at a Glance

The code should be selected based on the documented service and applicable CPT rules—not simply because the patient has a serious psychiatric diagnosis.

Mental Health CPT Codes and Telehealth Billing

Telehealth has become an important part of behavioral healthcare.

Mental health providers may provide psychotherapy through secure video platforms, depending on applicable federal, state, payer, and licensing requirements.

HHS lists several behavioral health CPT codes as commonly used for telehealth, including 90791, 90792, 90832, 90833, 90834, 90836, 90837, 90838, and 90839.

However, telehealth eligibility does not mean every payer processes every code in exactly the same way.

Before submitting a telehealth claim, verify:

• Patient location requirements
• Provider location requirements
• Payer telehealth policy
• Place-of-service requirements
• Modifier requirements
• State licensing rules
• Audio-video versus audio-only requirements
• Documentation requirements

The AMA also noted that CPT 2026 updated behavioral health services in its appendices related to audio-video and audio-only technologies.

Mental Health CPT Coding and Documentation

Correct CPT coding starts with good documentation.

A strong psychotherapy note should generally demonstrate what happened during the session and why the service was clinically necessary.

Depending on the service and payer requirements, documentation may include:

Patient symptoms

Describe clinically relevant symptoms rather than simply writing “patient doing better.”

Functional impact

Explain how symptoms affect work, school, relationships, sleep, daily functioning, or other relevant areas.

Interventions

Document the therapeutic techniques used.

Examples include:

• Cognitive behavioral therapy
• Supportive psychotherapy
• Behavioral activation
• Motivational interviewing
• Trauma-focused interventions
• Psychoeducation
• Problem-solving
• Coping-skills development

Patient response

Explain how the patient responded to the intervention.

Progress

Describe progress toward treatment goals or explain why the treatment plan needs to continue.

Medical necessity

The record should make it understandable why the service was necessary.

Time

When time is relevant to code selection, document the applicable time accurately.

Avoid copying the same generic psychotherapy note for every patient. Documentation should reflect the actual encounter.

Common Mental Health CPT Billing Mistakes

Even experienced behavioral health practices can experience claim denials because of small coding or documentation problems.

1. Choosing a code based only on appointment length

A 60-minute calendar appointment does not automatically justify every 60-minute psychotherapy code.

The record should support the service provided.

2. Using 90837 automatically

Some practices use 90837 for nearly every session because they schedule clients for one-hour appointments.

That can create payer scrutiny if the documentation doesn’t consistently support the service.

3. Confusing crisis therapy with extended therapy

A long session is not automatically a crisis session.

90839 and 90840 have specific crisis-related requirements.

4. Billing psychotherapy and E/M incorrectly

When psychotherapy and E/M are reported together, the services must meet the applicable requirements and be separately identifiable.

5. Ignoring payer-specific rules

A CPT code may be correct from a CPT perspective but still face a denial because of:

• Payer policy
• Provider credentialing
• Authorization
• Diagnosis restrictions
• Frequency limits
• Telehealth requirements
• Modifier requirements

6. Using an outdated code set

CPT changes every year.

The AMA reported 418 total changes in the 2026 CPT code set, including new, deleted, and revised codes.

Mental Health CPT Codes vs. ICD-10 Diagnosis Codes

Another common billing question is the difference between CPT and ICD-10.

They serve different purposes.

CPT

CPT describes what service you provided.

For example:

90834 = psychotherapy service

ICD-10-CM

ICD-10-CM describes the patient’s diagnosis or condition.

For example, a behavioral health claim may include an appropriate ICD-10-CM diagnosis associated with the patient’s clinical presentation.

Think of it this way:

ICD-10 = Why the patient needs treatment

CPT = What service you provided

Both are important components of accurate medical billing.

How to Improve Mental Health Billing in 2026

A growing behavioral health practice should build a consistent billing workflow rather than treating coding as something that happens only after the appointment.

A practical workflow looks like this:

Step 1: Verify insurance

Confirm eligibility and benefits before services whenever possible.

Step 2: Confirm authorization

Some services or plans may require prior authorization.

Step 3: Schedule the correct appointment

Your scheduling system should make the intended service clear.

Step 4: Complete the clinical documentation

Document the actual service provided.

Step 5: Select the appropriate CPT code

Match the code to the service, duration, provider qualifications, and applicable guidelines.

Step 6: Select the appropriate diagnosis

Use the diagnosis supported by the clinical record.

Step 7: Review modifiers and place of service

Especially important for telehealth.

Step 8: Submit the claim

Use a reliable clearinghouse or billing system.

Step 9: Track claim status

Don’t wait until accounts receivable becomes a problem.

Step 10: Analyze denials

Look for patterns such as:

• Incorrect CPT codes
• Missing modifiers
• Authorization problems
• Eligibility issues
• Documentation problems
• Payer-specific restrictions

Mental Health Billing Software Can Make CPT Coding Easier

For therapists and growing behavioral health practices, the right mental health EHR and medical billing software can reduce administrative work.

Useful features include:

• Appointment scheduling
• Automated appointment reminders
• Digital intake forms
• Insurance eligibility verification
• Clinical documentation
• CPT code selection tools
• Electronic claims
• Claim tracking
• ERA/payment posting
• Patient statements
• Telehealth
• Treatment plans
• Secure messaging
• Reporting and analytics

The goal isn’t to let software replace clinical judgment or coding expertise. Instead, good software can create a more consistent workflow and reduce avoidable administrative errors.

For a new therapist, a low-cost mental health EHR may be enough to manage scheduling, notes, billing, and claims. Larger practices may need more advanced revenue-cycle management, eligibility checking, clearinghouse integrations, and reporting.

Mental Health CPT Codes 2026: Frequently Asked Questions

What are the CPT codes for mental health therapy?

Common mental health therapy CPT codes include 90832, 90834, and 90837 for individual psychotherapy; 90846 and 90847 for family psychotherapy; 90853 for group psychotherapy; and 90839 and 90840 for crisis psychotherapy. Diagnostic evaluation codes include 90791 and 90792. CMS confirms these distinctions in its psychiatry and psychology billing guidance.

How many CPT codes are there for 2026?

The complete CPT code set contains more than 11,000 codes across healthcare. The 2026 edition introduced 288 new codes and included 84 deletions and 46 revisions. There is no single separate number representing “mental health CPT codes.”

What are 5 common CPT codes?

Five widely used behavioral health CPT codes are:

1. 90837 – Individual psychotherapy
2. 90834 – Individual psychotherapy
3. 90791 – Psychiatric diagnostic evaluation
4. 90847 – Family psychotherapy with patient present
5. 90853 – Group psychotherapy

The most appropriate five codes for a particular practice depend on the provider’s specialty and services.

What is the difference between CPT 99232 and 99233?

Both codes describe subsequent hospital inpatient or observation care. 99232 represents moderate medical decision-making or, when selected by time, at least 35 minutes. 99233 represents high medical decision-making or at least 50 minutes when selected by time.

Is 90837 always better than 90834?

No. The higher-numbered code should not be selected simply because it may have a higher reimbursement amount. The code must accurately describe the service performed and meet applicable time, documentation, medical necessity, and payer requirements.

Can therapists bill 90839?

Whether a provider can report a particular CPT code depends on the provider’s scope of practice, credentials, payer policy, and applicable law. When crisis psychotherapy is provided and the service meets the applicable requirements, 90839 represents the first 60 minutes of crisis psychotherapy.

Can 90840 be billed alone?

Generally, 90840 is an additional crisis psychotherapy code used with 90839, rather than a standalone routine psychotherapy code. CMS specifically describes 90840 as the code for each additional 30 minutes of crisis psychotherapy.

Final Takeaway: Get the CPT Code Right, Then Get the Workflow Right

Understanding mental health CPT codes 2026 is about more than memorizing numbers.

The most important codes for many behavioral health practices include 90791, 90792, 90832, 90834, 90837, 90839, 90840, 90846, 90847, and 90853, along with the psychotherapy add-on codes 90833, 90836, and 90838.

The right code depends on the service actually provided—not simply the appointment type selected in a calendar.

For therapists and behavioral health providers, the strongest billing process combines:

Accurate CPT coding + complete documentation + medical necessity + payer verification + correct claim submission + consistent follow-up.

The CPT code set itself is continually updated. The AMA reported substantial changes to the 2026 code set, including 288 new codes, so practices should avoid relying on old billing guides or outdated CPT information.

Ultimately, accurate mental health billing and coding helps practices reduce preventable claim denials, improve revenue-cycle efficiency, and spend less administrative time chasing payment—leaving providers more time to focus on what matters most: delivering quality behavioral healthcare.