CPT 90837 vs. 90834: Billing Psychotherapy Without Losing RVUs
Psychotherapy providers face an ongoing challenge when it comes to accurate CPT code selection. While CPT 90834 and CPT 90837 are both standard codes for individual therapy, understanding when to use each — and how to support them with proper documentation — is essential to avoid lost revenue and potential audits. The difference may seem minor, but billing errors involving these two codes can significantly affect your revenue cycle and compliance. This guide explains the distinctions between CPT 90834 and 90837, when each should be used, how to meet payer expectations, and ways to strengthen your billing processes without sacrificing reimbursement. Understanding the Basics: CPT 90834 vs. CPT 90837 CPT 90834 is designed for individual psychotherapy sessions lasting approximately 45 minutes, whereas CPT 90837 applies to longer sessions that are at least 53 minutes in duration, per CMS guidelines. However, the distinction isn’t just about clocking the time. These codes also reflect ...