Difference between 90834 vs 90837

Choosing the correct psychotherapy billing code is very important for mental health providers. Using the wrong code can lead to denied claims, delayed payments, and compliance issues. Two of the most commonly used psychotherapy codes are 90834 and 90837, but many providers are unsure when to use each one.

In 2026, payers are reviewing psychotherapy claims more carefully, especially for longer sessions. Understanding the difference between 90834 and 90837 helps providers bill correctly, improve reimbursement, and reduce billing errors.

What Are CPT Codes 90834 and 90837?

CPT 90834 is used for a 45-minute psychotherapy session. It is commonly billed when the provider delivers individual therapy for a moderate amount of time.

CPT 90837 is used for a 60-minute psychotherapy session. Many practices rely on Psychotherapy Medical Billing Services to make sure these codes are used correctly and meet payer requirements.

Main Difference Between 90834 vs 90837

The main difference in 90834 vs 90837 is the length of the therapy session. Code 90834 is for about 45 minutes, while 90837 is for about 60 minutes.

This time difference affects how the claim is billed and how much the provider is paid. Accurate time tracking is very important when selecting the correct psychotherapy code.

Documentation Requirements for 90834 and 90837

Both codes require complete session notes that explain the treatment provided. Providers must document the session length, treatment goals, and patient progress.

For 90837, stronger documentation is often needed because payers review longer sessions more closely. Proper psychotherapy billing documentation requirements help support the claim and improve reimbursement.

Common Billing Mistakes with 90834 and 90837

One common mistake is billing 90837 for sessions that do not meet the required time. This can lead to denied claims or audits.

Another problem is weak documentation. If the session notes do not support the code billed, providers may face reduce psychotherapy claim denials challenges and payment delays.

Reimbursement Differences Between 90834 and 90837

Because 90837 covers a longer therapy session, it usually pays more than 90834. However, higher reimbursement also means closer review from payers.

Insurance companies may require proof of medical necessity for CPT 90837 before approving payment. Knowing payer rules helps providers avoid reimbursement issues.

2026 Compliance Risks for 90834 and 90837

In 2026, payers are increasing audits for psychotherapy claims, especially for 90837. Longer sessions are often flagged for review.

Providers must follow behavioral health billing compliance rules carefully to avoid denials and penalties. Strong documentation helps lower audit risk.

Best Practices for Accurate Psychotherapy Billing

Accurate time tracking is one of the best ways to improve billing. Providers should record the exact session length and confirm the correct code before submitting the claim.

Staff education and routine audits also improve accuracy. These steps help reduce billing errors and improve payment speed.

Role of Revenue Cycle Management in Psychotherapy Billing

Revenue cycle management helps providers review claims before submission, fix errors, and manage denied claims. This improves billing accuracy and reduces revenue loss.

Strong RCM for psychotherapy billing supports faster reimbursement and helps practices stay financially stable.

Final Thoughts

Understanding the difference between 90834 and 90837 is essential for accurate psychotherapy billing. Using the right code helps providers avoid denials and improve reimbursement.

By improving documentation, tracking session time correctly, and following payer rules, providers can strengthen billing performance and protect practice revenue.