Let’s Talk About Session Durations

When you bill insurance for psychotherapy, knowing your codes is not optional. You have to know them well.

One of the most common confusions I see among therapists is about the codes 90832, 90834, and 90837. Many say, “I do 50-minute sessions,” or “My sessions are always an hour.” That might be how you schedule your appointments, but billing depends on the actual psychotherapy time you provide.

Let’s clear this up.

Understanding Psychotherapy Billing Codes

CPT codes tell insurance companies what service you provided. For individual psychotherapy, the code you use depends on the time spent delivering psychotherapy.

The three codes we focus on are:

• 90832: 30-minute psychotherapy

• 90834: 45-minute psychotherapy

• 90837: 60-minute psychotherapy

  
  

The number on your calendar does not automatically decide the code you bill. The actual time matters.

Therapists need to track actual session time for accurate billing.

90832: The 30-Minute Psychotherapy Code

Use 90832 when psychotherapy lasts between 16 and 37 minutes.

This code fits shorter, focused sessions. Maybe you check in on a specific treatment goal, reinforce a skill, address a current stressor, or provide a brief therapeutic intervention.

Shorter sessions can still be very therapeutic. But your documentation must clearly show what you addressed and what you did.

Make sure to document:

• The session time

• Clinical focus

• Interventions used

• Client’s response

  
  
  
  

90834: The 45-Minute Psychotherapy Code

90834 applies to psychotherapy lasting 38 to 52 minutes.

This is where many traditional therapy sessions fall. You have enough time to explore symptoms, identify patterns, use clinical interventions, and assess the client’s response without extending the session.

If you schedule 50-minute sessions, this is likely your code.

Your documentation should tell the clinical story. Saying “Client discussed anxiety” is not enough. You need to explain:

• What you did

• What intervention you used

• How the client responded

• How this connects to the treatment plan

  
  
  
  

90837: The 60-Minute Psychotherapy Code

90837 is for psychotherapy lasting 53 minutes or longer.

Read that carefully: 53 minutes or more.

A 50-minute session is not 90837, even if you planned for an hour. A 52-minute session does not become 90837 because you spent extra time finishing your note.

This code fits when the client’s symptoms, treatment needs, or interventions require an extended session. Examples include complex trauma work, EMDR, or significant symptom presentation.

If you bill 90837 regularly, your documentation must support the clinical need and the longer time.

Tracking actual psychotherapy time helps ensure correct billing.

The Easy Way to Remember It

• 90832 = 16–37 minutes

• 90834 = 38–52 minutes

• 90837 = 53 minutes or more

  
  

You do not pick the code based on which reimburses more. You do not bill 90837 just because your calendar says “60-minute appointment.”

Bill for the psychotherapy service you actually provided.

Why Your Documentation Matters

I say this often: If it isn’t documented, it’s hard to defend.

Your note should support the service billed. At minimum, it should clearly reflect:

• Clinical focus of the session

• Symptoms addressed

• Interventions used

• Client’s response

• Progress toward treatment goals

• Time associated with the service

  
  

Your documentation does not need to be a novel. Actually, please don’t write a novel. But it must show you provided a medically necessary psychotherapy service and that the code billed matches the service documented.

Stop Guessing Your Session Time

One of the easiest billing mistakes to avoid is guessing.

If you started late, document the actual time. If the client ended early, document the actual time. If technology interrupted the session, make sure your documentation reflects the psychotherapy service provided.

Your electronic health record (EHR) system can help track this. Platforms like SimplePractice and TherapyNotes offer practice management and billing tools that help clinicians stay organized.

But remember, software does not replace your clinical judgment or your responsibility to bill accurately.

The Bottom Line

Codes 90832, 90834, and 90837 are time-based psychotherapy codes.

Know the time ranges. Track your actual psychotherapy time. Choose the correct code. Make sure your documentation supports what you billed.

Billing does not have to be scary, but you do have to know what you’re doing.

You’re already a clinician. Now learn the business and documentation side of the work, too.

If you want to dive deeper into Session Durations, check out our resources at Drawanert and Associates. We aim to be your go-to source for growing your skills, achieving licensure, and building a successful practice.

Accurate notes and time tracking support proper billing and clinical care.

Remember, accurate billing starts with knowing your codes and tracking your time. Your documentation is your best defense and your strongest tool for ethical, effective practice. Keep it clear, keep it honest, and keep making a difference. ~Sadaqa