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CPT 90837: 60-Minute Psychotherapy, 2026 Rate and the 53-Minute Rule

The therapy hour, as a billing code. Where the 53-minute line sits, what Medicare pays in 2026, and the notes that keep a full-session practice paid.

What CPT 90837 Represents

Code 90837 reports individual psychotherapy, 60 minutes — in CPT time logic, any session of 53 minutes or more of psychotherapy with the patient. Its siblings: 90834 (45 minutes — sessions of 38-52 minutes) and 90832 (30 minutes — 16-37 minutes). The threshold that matters daily is 53: a 50-minute "therapy hour" is a 90834, and rounding it up to 90837 is upcoding, while a genuine 55-minute session billed as 90834 quietly donates the difference. For a full-time therapist the gap between the two codes, multiplied across a year of sessions, is thousands of dollars in either direction — which is exactly why both therapists and payers care so much about this one number.

Time counted: face-to-face psychotherapy time with the patient. Scheduling, notes written after, and separate case management do not count toward the 53 minutes — and the safest records state actual start and stop times, not "60 minutes" as a habit.

Why Payers Watch 90837

Some plans have historically flagged clinicians whose sessions are overwhelmingly 90837, sending "education" letters or requesting records — the profiling logic being that a mix of patients should produce a mix of session lengths. The letters are not denials, and full-session practice is entirely legitimate — many evidence-based approaches are built on the longer hour. The defense is not coding down in fear; it is documentation that supports the time and the necessity: start/stop times, the interventions used, and, when a payer asks, a straightforward clinical rationale for why this patient benefits from extended sessions. Clinicians who fold to profiling letters by switching everything to 90834 give up real revenue for no compliance gain; clinicians who ignore documentation lose the audits. The correct posture is precise and unapologetic.

Billing Mechanics

What 90837 Pays in 2026

These are 2026 national Medicare rates from the CMS fee schedule. Your local rate will be a little higher or lower. Check yours in the Medicare fee lookup.

CodeSession timeOffice (and POS 10)Facility (and POS 02)
9083216 to 37 minutes$85.84$69.47
9083438 to 52 minutes$113.90$91.85
9083753 minutes or more$167.00$135.27
90791Diagnostic evaluation (intake)$173.35$137.28
90833Add-on with an E/M visit, 16 to 37 minutes$81.50$65.80
90836Add-on with an E/M visit, 38 to 52 minutes$103.21$83.17
90838Add-on with an E/M visit, 53 minutes or more$136.61$110.22

Telehealth pays differently by place of service. Medicare pays a session with the patient at home (POS 10) at the office rate. A session with the patient somewhere else (POS 02) is paid at the facility rate. For 90837 that is $167.00 against $135.27.

What rounding down costs. A 55-minute session billed as 90834 instead of 90837 gives up $53.10 at the Medicare office rate. At 20 such sessions a week for 48 weeks, that is about $51,000 a year. Rounding a 50-minute session up to 90837 is the same mistake in the other direction, and it is the one payers audit.

Less than 16 minutes of psychotherapy is not billable as psychotherapy at all.

Common 90837 Denials

DenialUsual causeFix
CO-50No treatment plan or goals in the recordAppeal with the plan and progress notes.
CO-197No authorization, or the plan's visit limit was reachedTrack visits left the way you track deductibles.
CO-9790837 billed with an E/M visit on the same dayRebill as the E/M plus add-on 90838.
CO-4Telehealth modifier missing or wrongAdd the modifier the payer asks for, such as 95 for video or 93 for audio only.

Source: CMS Physician Fee Schedule, 2026 RVU file (conversion factor $33.4009).

Documentation That Defends the Hour

  1. Start and stop times, every session — the single strongest 90837 defense, and the first thing reviewers look for
  2. Interventions and themes — the modality used, what was worked on, the patient's response; templated notes that repeat verbatim across sessions are the audit pattern payers screen for
  3. Medical necessity thread — diagnosis, treatment plan, measurable goals, and periodic progress against them; therapy without a documented plan is where payers aim first
  4. The extended-session rationale — one sentence in the plan about why longer sessions serve this patient converts a profiling question into a non-event

A Records-Request Walkthrough

Here is the moment this page exists for: a payer letter arrives asking for records on ten 90837 sessions. The clinician whose notes carry start/stop times (10:04-11:01), named interventions, session-specific content, and a treatment plan that mentions why extended sessions serve this patient sends the packet and hears nothing more — the review closes. The clinician whose ten notes are near-identical templates reading "60-minute session, discussed stressors, continue plan" faces recoupment on all ten and, worse, lands on the payer's watch list for the next round. Identical clinical work, identical patients, opposite outcomes — decided entirely by five extra minutes of note-writing per session. For a full-time therapist, the arithmetic is stark: those five minutes protect roughly a third of annual revenue, because 90837 IS the revenue. Write the note that survives the letter before the letter comes.

Frequently Asked Questions

How long does a session have to be to bill 90837?
53 minutes or more of face-to-face psychotherapy. Sessions of 38-52 minutes bill 90834; the traditional 50-minute hour is a 90834, not a rounded-up 90837.
Is it a problem to bill 90837 for most of my sessions?
Full-session practice is legitimate, but expect payer profiling attention. The defense is documentation - start/stop times, interventions, and a stated rationale for extended sessions - not defensive downcoding.
Can 90837 be billed for telehealth?
Yes - psychotherapy is broadly covered via telehealth. Use the correct place of service and payer-required modifiers, and verify each payer's current telehealth policy annually.
What does Medicare pay for 90837?
In 2026 it pays $167.00 nationally in an office, or for telehealth to the patient's home (POS 10), and $135.27 in a facility. 90834 pays $113.90 and $91.85. Local rates differ a little.
Can I bill 90837 with an E/M visit on the same day?
Not as 90837. A prescriber who does an E/M visit and psychotherapy on the same day bills the E/M plus an add-on code: 90833, 90836 or 90838 for 53 minutes or more. The therapy time must be separate from the E/M time.

Related: Mental health billing services · POS 10 — telehealth from home · CPT 99214 · CO-50 — medical necessity · All CPT guides

Hassan Raza AwanReviewed by Hassan Raza Awan, Founder — 4+ years of hands-on U.S. medical billing experience. General billing information — verify against current CMS guidance and your payer contracts.

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