CPT 90837 and 90834: What falling reimbursement rates mean for your practice

Published on June 11, 202 by Zencare Team.

If you bill insurance for psychotherapy, two CPT codes likely make up the bulk of your claims: 90837 and 90834. And if you found this resource, there’s a good chance something prompted your search. Maybe a reimbursement check came in lower than it used to, or you heard from a third-party network that payor rates are changing.

You’re not the only one who has been experiencing these changes. Payor fee schedules shift, aggregators renegotiate contracts, and the 60-minute psychotherapy code in particular has a long history of being the target for rate reductions and additional scrutiny.

The good news: when you understand how these codes work and what your options are, you can respond thoughtfully to protect your income and clinical integrity.

Below, we’ll break down the difference between 90837 and 90834, what may be driving recent reimbursement changes, and what therapists are doing to make their practices less vulnerable to the next rate cut.

A quick refresher: 90837 vs. 90834

Both codes describe individual outpatient psychotherapy. The difference is time:

• CPT 90834: Psychotherapy, 45 minutes. Used when the session lasts 38 to 52 minutes.
• CPT 90837: Psychotherapy, 60 minutes. Used when the session lasts 53 minutes or more.
• CPT 90832: Psychotherapy, 30 minutes. Used when the session is lasts 16 to 37 minutes.

These are time-based codes. The correct code is based on the actual face-to-face psychotherapy time, not your calendar session block or the rate a payor prefers. That distinction matters especially when rates are changing.

Why the reimbursement gap matters

90837 (60 mins) reimburses more than 90834 (45 mins) because it reflects a longer, more intensive session. The exact dollar figures vary by payor, plan, region, and contract, but the 60-minute code typically pays meaningfully more per session than the 45-minute code.

For a full-time therapist, that per-session difference adds up quickly across a week, a month, and a year. So, when a payor trims the 90837 (60 mins) rate, or narrows the gap between 90837 (60 mins) and 90834 (45 mins), it can gradually reshape your revenue without changing a single thing about how you practice.

What’s happening with payor and aggregator rates

Therapists who credential and bill through aggregators rely on those organizations negotiated contracts with payors. When a payor updates its fee schedule, the change flows downstream to the aggregator, and to every therapist on that contract.

There are a few reasons therapists, like you, are seeing this pattern:

• Cost containment. More people are using behavioral health benefits, and payors are looking for ways to limit costs. Reducing rates on the most-billed codes is one way they try to do this.
• The 90837 (60 mins) spotlight is not new. Major payors have, for years, scrutinized high 90837 utilization and nudged therapists toward shorter sessions. For many therapists, changes to 90837 reimbursement can feel sudden. But scrutiny of the 60-minute code is not new.
• Aggregator contracts are an added obstacle. When you bill through a third party like an aggregator, your rates are tied to that organization’s agreements. You generally don’t control those negotiations, which is part of the trade-off for the credentialing and billing convenience these networks provide.

A note on specifics: Reimbursement rates and any recent changes vary by plan, state, and contract, and they update frequently. Confirm your current rates directly through your payor or aggregator’s fee schedule before making any billing or business decisions.

What you should not do in response to reduced rates

When rates drop, the instinct is to find a quick solution. Two of the most common reactions can also create bigger problems:

• Don’t reflexively downcode to 90834. If your sessions genuinely run 53 minutes or longer and are clinically appropriate, switching to 90834 out of fear of an audit means under-representing the work you actually did and giving up revenue you legitimately earned. Defensive downcoding may feel safer in the moment, but it’s also how many therapists leave revenue on the table.
• Don’t upcode, either. Billing 90837 for sessions that ran 45 minutes is inaccurate and exposes you to clawbacks, audits, and compliance risk.

The safest approach is also the most straightforward: bill the code that matches the session length and clinical need, then document it clearly.

How to bill 90837 with confidence

90837 is a valid, widely accepted code, and you’re entitled to use it when a session qualifies. Solid documentation is what lets you stand behind it if a claim is ever reviewed:

• Record session time. Note start and stop times or total face-to-face psychotherapy time so the code is clearly supported.
• Document medical necessity. Tie the session length to the clinical picture, including symptom severity, treatment complexity, the interventions used, and progress toward goals.
• Be consistent. Your notes, your billed code, and your scheduled session length should tell the same story.

Good documentation doesn’t just defend against audits. It makes your clinical record stronger and your practice more resilient overall.

The bigger issue: how exposed is your income?

Here’s the uncomfortable truth a rate cut can expose: if one payor or aggregator can change your income overnight, too much of your practice may depend on one channel. The clinical work is yours, but the financial terms aren’t always in your hands.

That’s why many therapists respond to rate pressure not just by tightening their billing, but by diversifying how clients find and pay them:

• Building a steady stream of clients who reach out directly, rather than depending entirely on a single in-network funnel.
• Integrating private-pay or out-of-network clients alongside those that use insurance.
• Reducing reliance on the lowest-paying contracts over time, on their own terms.

You don’t have to drop insurance to do this. The goal is to have enough flexibility that the next fee-schedule update is a minor annoyance, not a crisis.

Where Zencare fits in

That’s where client acquisition and practice operations start to matter. Zencare is designed to help therapists strengthen both. When one revenue stream becomes less reliable, the most durable fix is a fuller, healthier caseload and a practice that runs efficiently enough to support it.

Zencare helps therapists:

• Get found by the right clients with Zencare Marketing. Zencare’s vetted therapist directory connects you with people actively searching for care that fits, including clients seeking private-pay and out-of-network options, so you’re less dependent on any single low-paying network.
• Fill their caseload predictably. When more well-matched clients are reaching out directly, you may feel less pressure to rely on every low-paying contract to keep your schedule full.
• Run their business in one place with Zencare Practice Management. Scheduling, intake, client communication, and billing workflows live together, cutting the administrative drag that eats into the time you could spend with clients.
• Build a practice that can absorb a rate change. When you control more of your client pipeline and your operations are efficient, a single payor’s fee-schedule update stops being a threat to your livelihood.

Rate cuts are largely out of your control. The size, mix, and efficiency of your practice are not.

→ See how Zencare helps you build a more resilient practice.

Frequently asked questions

What’s the difference between CPT 90834 and 90837?

Both are individual psychotherapy codes. 90834 is for 45-minute sessions (38–52 minutes), and 90837 is for 60-minute sessions (53+ minutes). The correct code is based on the actual time spent with the client.

Is 90837 being phased out or eliminated?

No. 90837 remains a valid and widely used code. Some payors reduce its reimbursement rate or scrutinize high utilization, but the code itself is still fully billable when a session meets the time threshold and is clinically justified.

Why did my reimbursement go down?

Most rate changes come from payor fee-schedule updates and contract renegotiations. When you bill through an aggregator, your rates are tied to that organization’s agreement with the payor, so a change at the payor level flows through to your reimbursement.

Should I switch all my clients from 90837 to 90834 to avoid scrutiny?

No. Downcoding sessions that genuinely qualify as 90837 means giving up revenue you earned and misrepresenting your work. Bill based on actual session length and clinical need, and document it thoroughly.

Can I still bill 90837?

Yes whenever the session lasts 53 minutes or more and the longer session is clinically appropriate and documented. Strong notes (including session time and medical necessity) support the code if a claim is ever reviewed.

How can I protect my practice income from future rate cuts?

Bill accurately, document well, and reduce your dependence on any single low-paying contract by diversifying how clients find and pay you. Tools like Zencare Marketing and Zencare Practice Management help by bringing in well-matched referrals and streamlining the business side so your practice stays sustainable through rate changes.