90833 Individual Psychotherapy with Evaluation and Management Services, 30 Minutes

CPT 90833 is defined as individual psychotherapy, 30 minutes, when performed with an Evaluation and Management service. It is an add-on code, meaning it cannot be billed on its own and must always be reported in addition to a primary E/M code.

The code represents psychotherapeutic treatment provided during the same encounter as medical evaluation and management, such as medication assessment, adjustment, or monitoring.

Key characteristics of 90833:

• It is an add-on psychotherapy code
• It must be billed with an E/M code
• It reflects therapeutic intervention, not just counseling or education
• It is time based, with a 30 minute threshold

Add-on codes like 90833 are used when a service is performed in addition to a primary service and would not normally be reported alone. In this case:

• The E/M code represents the medical evaluation and decision making
• 90833 represents the psychotherapy provided during the same visit

Because it is an add-on code:

• It does not require a modifier 51
• It cannot be billed without a qualifying E/M service
• Documentation must clearly support two distinct services

90833 should be used when both of the following occur during the same visit:

• A medically necessary E/M service is performed
• Psychotherapy is provided for approximately 30 minutes

Typical clinical scenarios include:

• A medication management visit that also includes structured psychotherapy
• Ongoing psychiatric care where therapy and medication management are integrated
• Follow-up visits addressing symptoms, coping strategies, and treatment goals alongside medical evaluation

90833 is not appropriate when:

• Only medication management occurs
• The interaction consists of brief supportive counseling or reassurance
• Psychotherapy is minimal or incidental

90833 is time based, but it follows CPT’s midpoint rule.

Time Range

• 16 to 37 minutes of psychotherapy

The psychotherapy time must be:

• Separate from E/M time
• Face-to-face (or telehealth equivalent)
• Documented clearly

Time spent on:

• Medication review
• Medical decision making
• Charting
• Coordination of care

Does not count toward psychotherapy time.

There are three primary psychotherapy add-on codes used with E/M services:

Selecting the correct code depends entirely on documented psychotherapy time, not total visit length.

Only providers who are eligible to bill E/M services may report CPT 90833. This typically includes:

• Psychiatrists (MD/DO)
• Psychiatric mental health nurse practitioners
• Physician assistants providing psychiatric services

Psychologists, therapists, and counselors cannot bill 90833 because they do not bill E/M services.

Credentialing and payer enrollment must support both:

• The E/M code
• The psychotherapy add-on

Documentation is the single most important factor in determining whether 90833 will be paid or denied. Payers expect clear evidence that psychotherapy occurred and that it was distinct from the E/M service.

Required Documentation Elements

1. Evidence of an E/M Service

Your note must include:

• Assessment of symptoms
• Medical decision making
• Medication management or evaluation
• Treatment planning

The E/M portion should stand alone as a valid service.

2. Clear Psychotherapy Documentation

The psychotherapy section should describe:

• The therapeutic approach used (CBT, supportive therapy, psychodynamic, etc.)
• The focus of the session
• The patient’s response and engagement
• Progress toward treatment goals

Generic statements like “supportive counseling provided” are not sufficient.

3. Time Spent in Psychotherapy

Document:

• Total psychotherapy time (for example, “20 minutes spent in psychotherapy”)
• That the time is separate from E/M activities

While CPT does not require exact start and stop times, many payers prefer a clearly stated duration.

One of the most common audit findings is blended documentation, where E/M and psychotherapy are not clearly distinguished.

Best practice is to use separate sections, such as:

• E/M Assessment and Plan
• Psychotherapy Note

This structure helps demonstrate that two distinct services were provided.

Payers expect psychotherapy to be medically necessary, not incidental.

Medical necessity is supported when:

• The patient has an active mental health diagnosis
• Psychotherapy addresses symptoms, behaviors, or functional impairment
• Treatment goals are documented
• Progress or response is evaluated

Psychotherapy provided solely for:

• Education
• Medication adherence discussion
• General reassurance

Does not typically support billing 90833.

Despite its frequent use, CPT 90833 is often billed incorrectly, leading to denials, downcoding, and increased audit risk.

Billing Without a Qualifying E/M Code

90833 cannot be billed alone. If no E/M code is reported, the claim will be denied.

Insufficient Psychotherapy Documentation

Notes that lack therapeutic content or describe only medication discussion often lead to downcoding or denial.

Incorrect Time Selection

Billing 90833 when psychotherapy time is under 16 minutes is not compliant.

Duplicate or Overlapping Time

Time spent on E/M activities must not be counted toward psychotherapy time.

Overuse Patterns

Routine billing of 90833 at every visit without variation or documentation of need increases audit risk.

Many payers allow CPT 90833 via telehealth when:

• Both E/M and psychotherapy services are permitted remotely
• Audio-video requirements are met (unless audio-only is explicitly allowed)
• Telehealth consent is documented

Telehealth Documentation Tips

Include:

• Patient consent
• Modality used
• Location requirements if applicable
• Safety planning for remote care

90833 typically does not require modifier 25 when billed with an E/M service, as it is already designated as an add-on code.

However, payer rules vary. Always confirm:

• Modifier requirements
• E/M level selection rules
• Telehealth modifiers and POS codes

Payers frequently audit psychotherapy add-on codes due to:

• Higher reimbursement
• Frequent misuse
• Inconsistent documentation

High-risk audit indicators include:

• Identical notes across visits
• Minimal psychotherapy detail
• Psychotherapy time always documented at the minimum threshold
• Lack of treatment goals

A well organized documentation framework ensures both services are clearly supported and easy to defend during audits.

E/M Section

• Interval history
• Medication review and response
• Medical decision making
• Assessment and plan

Psychotherapy Section

• Modality used
• Focus of therapy
• Patient response
• Progress toward goals
• Time spent in psychotherapy

This structure supports clarity and audit defensibility.

Because CPT 90833 is an add on psychotherapy code that is closely reviewed by payers, maintaining compliance requires consistent documentation, provider education, and ongoing monitoring. Implementing the following best practices helps reduce denials, minimize audit risk, and support accurate reimbursement.

Educate providers on E/M versus psychotherapy distinctions

Clinicians should clearly understand what constitutes medical evaluation and management versus psychotherapy. This distinction is critical to ensure both services are documented separately and billed appropriately.

Use documentation templates that prompt psychotherapy detail

Templates should guide providers to record the therapeutic approach used, session focus, patient response, and progress toward treatment goals rather than relying on generic statements.

Require clear documentation of psychotherapy time

Because CPT 90833 is time based, documentation should clearly state the amount of time spent delivering psychotherapy, separate from E/M activities.

Monitor payer feedback and denial trends

Reviewing explanations of benefits and denial reasons helps identify patterns, training gaps, and documentation issues before they escalate into larger compliance problems.

Perform regular internal audits

Periodic chart reviews allow practices to verify that documentation supports both the E/M service and the psychotherapy add-on, reducing exposure during external audits.

Avoid automatic or routine use of add on codes

CPT 90833 should only be billed when psychotherapy is truly provided and medically necessary. Automatic use without clinical justification increases audit risk.

A disciplined and consistent approach to CPT 90833 billing significantly reduces compliance risk while supporting accurate reimbursement for integrated psychiatric care.

Many practices choose to outsource billing to improve efficiency and cash flow. Discover how virtual medical assistant services can streamline your front desk operations, alleviate administrative burdens, and enhance patient communication.

Reimbursement for 90833 varies by payer but is generally incremental to the E/M payment. While financially valuable, improper billing can result in:

• Recoupments
• Penalties
• Prepayment review status

Compliance should always outweigh short-term revenue considerations.

Beyond coding accuracy, proactive billing strategies play a key role in revenue optimization, as explained in Proactive Medical Billing: Expert Tips to Maximize Your Revenue.

CPT 90833 allows providers to be appropriately reimbursed when psychotherapy and medical management are delivered during the same encounter. However, it is a high-risk code that demands clear documentation, accurate time tracking, and strong clinical justification.

At Summit RCM, we help behavioral health practices navigate the complexity of CPT 90833 with confidence and precision. Our expert Medical Coding Services ensure psychiatric services are documented correctly, billed accurately, and aligned with payer requirements. With Summit RCM as your partner, integrated psychotherapy and E/M services are supported by strong revenue cycle practices that reduce denials, limit audit risk, and allow providers to focus on high quality patient care.