Many mental health providers face a hidden issue called the “session-check gap.” This happens when the time of a therapy session does not match what is billed. Even small mistakes can lead to claim denials and lost revenue. Many clinics use Psychology Billing Services to manage claims, but this problem can still occur without strong processes.
The session-check gap often affects 90837 psychology coding, which is used for longer therapy sessions. When time, notes, and billing do not match, claims may be rejected. Fixing this gap helps reduce errors, improve payments, and keep your billing system strong.

What Is CPT 90837? A Simple Overview
CPT 90837 billing guidelines define this code as a 60-minute psychotherapy session. It is used when a provider spends enough time with a patient to meet this requirement. This code usually brings higher reimbursement than shorter sessions.
However, time rules are strict. If the session is shorter than required, you should use a different code. Understanding psychotherapy 60-minute session billing helps ensure you use the correct code and avoid mistakes.
Why the Session-Check Gap Occurs
The session-check gap often happens when session time is not tracked correctly. For example, a provider may think the session lasted 60 minutes, but the record shows less time. This leads to incorrect billing.
Another reason is poor communication between clinical and billing teams. If notes do not match the claim, errors happen. These gaps create behavioral health billing errors that can affect payments and compliance.
Common Mistakes with 90837 Billing
One common mistake is billing 90837 for sessions that are too short. This can lead to claim denials or even audit risks. Accurate time tracking is very important.
Other mistakes include missing session times, weak notes, and ignoring payer rules. These issues affect mental health documentation requirements and increase the chance of errors. Avoiding these mistakes helps improve your billing success.
Step 1: Accurately Track Session Time
The first step is to track session time carefully. Always record the exact start and end times of each session. This helps ensure that your billing matches the service provided.
Good session time tracking psychotherapy reduces errors and supports correct coding. It also helps avoid undercoding or overcoding. Accurate time tracking is the foundation of proper billing.
Step 2: Strengthen Documentation to Support 90837
Strong documentation is key for successful billing. Your notes should clearly explain the session, the treatment, and why it was needed. This supports medical necessity for 90837.
Clear and complete notes also help during audits. They show that the service meets all requirements. Following proper mental health documentation requirements protects your practice and improves claim approval rates.
Step 3: Align Clinical Notes with Billing Entries
Your clinical notes and billing entries must match. If there is a mismatch, the claim may be denied. This is a common cause of the session-check gap.
Aligning your records improves accuracy and reduces errors. It also helps create clean claim submission psychology and ensures smoother payment processing.
Step 4: Follow Payer-Specific Guidelines
Each insurance company has its own rules for 90837 billing. Some may have strict time or documentation requirements. Not following these rules can lead to denials.
Staying updated helps reduce 90837 claim denials and improves compliance. Simple checks can make a big difference in your billing success.
Step 5: Implement Pre-Submission Reviews
Before sending claims, review them carefully. A checklist can help catch errors in time, coding, and documentation. This is known as a pre-submission claim review.
This step improves accuracy and reduces mistakes. It also helps prevent denials and supports better billing results. Small reviews can lead to big improvements.
The Role of Workflow Optimization in Closing the Gap
Improving your workflow can help close the session-check gap. Clear communication between providers and billing staff is very important. Everyone should follow the same process.
Standard systems reduce confusion and errors. This helps improve your revenue cycle management psychology and ensures consistent billing practices.
Key Metrics to Monitor for 90837 Success
Tracking key metrics helps you measure success. Start with your first-pass claim acceptance rate. This shows how many claims are approved without changes.
You should also track denial rates, reimbursement per session, and documentation errors. These numbers help you improve your billing process and reduce behavioral health billing errors.
Final Thoughts
The session-check gap may seem small, but it can cause big problems. It leads to denials, delays, and lost revenue if not fixed.
By improving time tracking, documentation, and review processes, you can close this gap. This will help you reduce errors, improve payments, and build a stronger, more reliable billing system.
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