CPT 90837: A Decision and Audit Framework for Behavioral Health Billing
Updated: Aug 23
A 50-minute session billed as 90837. A note that says “60-minute session” with no start or stop time. A practice where nearly every psychotherapy encounter somehow lands on the same code. None of these are dramatic errors on their own — they're the quiet pattern that draws payer attention over time. Our behavioral health billing team at MedCloudMD built this guide around a different question than most 90837 explainers: not just what the code means, but how to build a billing process defensible enough to survive review.
CPT 90837 at a Glance 90837 describes individual psychotherapy of 53 minutes or more of documented face-to-face time — not a scheduled hour, and not a rounded-up 50-minute session. It has no upper time limit, so a 75-minute session is still one unit. Any licensed psychotherapy provider within their scope of practice and payer credentialing may report it. It differs from 90834 (38–52 minutes) purely by documented time, not clinical complexity. When psychotherapy is delivered alongside an E/M service on the same date, the equivalent 53+ minute service is billed as an E/M code plus add-on 90838 — never standalone 90837 with a modifier. The single biggest documentation risk: notes that assert a code-supporting time without clear start/stop time or total-minutes documentation. |
The 90837 Decision Path
Was the service psychotherapy? → How much qualifying face-to-face psychotherapy time was actually documented? → Was it standalone psychotherapy, or psychotherapy delivered with an E/M service? → Does documentation establish medical necessity for the full 53+ minutes? → Does the specific payer's policy support this code and provider type? → Select the code that matches all of the above — not the one that matches the appointment slot.
90834 vs. 90837 vs. 90838
The 53-minute threshold isn't arbitrary — it reflects the CPT time-based coding convention of setting the boundary at the midpoint between the 45-minute and 60-minute targets (52.5, rounding up to 53). A session documented at 52 minutes or less is 90834, full stop.
When 90837 Is Appropriate — and When It Isn't
Scenario | 90837 Appropriate? |
Standard session running 53+ documented minutes of active clinical work | Yes, if documented |
50-minute session mentally rounded to “an hour” | No — bill 90834 |
Extended session addressing a genuine clinical complexity, fully documented | Yes, with clear medical necessity |
Same-day medication management plus 53+ minutes of psychotherapy | No — use E/M + 90838, not standalone 90837 |
Session where time included scheduling or administrative discussion | Only the active clinical time counts toward the threshold |
What Documentation Actually Supports 90837
Two Original Examples
Weak Note
“60-minute session. Patient discussed stressors. Continue current plan.” No start/stop time, no specific intervention, no documented clinical reasoning for the extended length. This note alone would not clearly withstand a payer medical-necessity review.
Stronger Note
“Session 2:05–3:08 PM. Patient presented with escalating panic symptoms following a workplace incident; extended time used for grounding techniques and cognitive restructuring around the triggering event. Patient demonstrated reduced physiological arousal by session end and identified two coping strategies to use before next session. Continuing weekly CBT-focused sessions.” This version documents time, intervention, response, and plan — all specifically tied to why the session ran long.
90837 Self-Audit Scorecard
☐ Does the note state start/stop time or total minutes?
☐ Does documented time clearly reach 53 minutes or more?
☐ Is medical necessity for the extended time explained, not just implied?
☐ Is the intervention described specifically, not generically?
☐ Is patient response documented rather than assumed?
☐ Is the note free of language duplicated from a prior session?
☐ If E/M was also provided, was 90838 used instead of standalone 90837?
☐ Is the note signed and authenticated per payer requirements?
Mostly checked: high confidence. Several unchecked: review recommended before submission. Many unchecked: treat as a high-risk claim and address documentation before billing.
Common 90837 Denial Triggers
Trigger | What the Payer May Question | Prevention |
Insufficient documented time | Whether 53 minutes actually occurred | Explicit start/stop time on every note |
Weak medical necessity | Why the extended session was clinically required | Tie necessity to specific symptoms/goals |
Repetitive/cloned documentation | Whether each note reflects a distinct encounter | Vary language to reflect the actual session |
Standalone 90837 billed with E/M | Bundling conflict | Use E/M + 90838 for combined visits |
Telehealth mismatch | Modifier/POS inconsistent with payer policy | Verify current payer telehealth requirements |
Missing authentication | Whether the note was properly signed | Confirm signature requirements are met |
Telehealth 90837
Modifier 95 generally applies to live video sessions and modifier 93 to audio-only, matched to the correct place-of-service code — but exact requirements, accepted modalities, and consent documentation vary by payer and continue to shift. Document the modality, patient location, and provider location on every telehealth note, and verify current policy per payer rather than assuming last year's rule still applies.
Medicare vs. Commercial Payers
Factor | Medicare | Commercial Insurance |
Documentation of time | Required on 90832, 90834, and 90837 | Generally expected; verify specific payer policy |
Telehealth rules | Subject to Medicare-specific telehealth policy | Varies by plan and contract |
Authorization | Varies by service and MAC | Often required; confirm per payer |
90837 Billing Workflow
Clinical Encounter → Documentation → Coding Review → Eligibility/Benefit Verification → Authorization Check Where Applicable → Claim Creation → Claim Scrubbing → Submission → Payer Adjudication → Payment Posting → Denial Management → Appeal → AR Follow-Up. Coding review — checking documented time against the billed code before the claim goes out — is the highest-leverage step most practices skip.
90837 Billing KPIs
Red Flags in a 90837 Billing Operation
• Almost every psychotherapy encounter is billed as 90837, regardless of actual session length
• Notes across different patients and dates read nearly identically
• No one reviews coding against documented time before submission
• Denial volume is high but no one tracks the root cause
• Provider utilization patterns are never monitored
Compliance Reminder Systematic 90837 use without documentation to match is exactly the pattern payer audits target. The fix isn't avoiding the code — it's making sure the documentation earns it every time. |
In-House vs. Specialized Behavioral Health RCM Partner
Factor | In-House Billing | Specialized RCM Partner |
Payer-specific behavioral health knowledge | Depends on staff training and turnover | Built into ongoing specialty focus |
Coding review before submission | Often informal or inconsistent | Typically a defined, repeatable step |
Denial root-cause tracking | May happen claim-by-claim only | Often tracked systematically across the practice |
Scalability | Limited by current staffing | Scales with claim volume |
Neither model is automatically better the right fit depends on claim volume, in-house expertise, and how much oversight capacity your practice has.
Why Practices Work With MedCloudMD
Our behavioral health billing specialists review 90837 coding against documentation before claims go out, track denial patterns specific to psychotherapy codes, and follow up on AR so preventable revenue doesn't sit unresolved. We don't guarantee reimbursement outcomes what we can do is make sure your claims reflect what was actually documented and clinically supported.
Frequently Asked Questions
What is CPT 90837?
Individual psychotherapy of 53 minutes or more of documented face-to-face time, with no upper time limit.
How many minutes are required for CPT 90837?
53 minutes or more of documented, active clinical psychotherapy time — not scheduled appointment length.
What's the difference between 90834 and 90837?
Documented time alone: 90834 covers 38–52 minutes, 90837 covers 53 minutes or more. Clinical complexity doesn't change which code applies.
Can 90837 be billed with an E/M service?
Not as standalone 90837. When psychotherapy and an E/M service are both provided the same day, bill the E/M code plus add-on 90838 instead.
What documentation is needed for 90837?
Start/stop time or total minutes, medical necessity for the extended length, specific intervention, patient response, and a clear plan.
Can 90837 be billed through telehealth?
Yes, generally with modifier 95 (video) or 93 (audio-only) and correct place of service — but verify current requirements per payer.
Does Medicare cover CPT 90837?
Yes, and Medicare specifically requires documented time for 90832, 90834, and 90837.
Why are 90837 claims denied?
Most often: insufficient documented time, weak medical necessity, repetitive documentation, or incorrect billing alongside an E/M service.
What modifiers may apply to 90837?
Telehealth modifiers (95 for video, 93 for audio-only) are common; exact requirements vary by payer.
How can a practice audit its own 90837 claims?
Compare documented time against the billed code on a sample of recent claims, check for repetitive language, and track denial and correction rates by provider.
Disclaimer
This content is provided for educational and informational purposes only and should not be considered legal, coding, reimbursement, or medical advice. CPT coding requirements, CMS policies, payer rules, and reimbursement policies may change over time and can vary by payer, contract, provider type, and location. Healthcare organizations should verify current coding guidelines and payer-specific requirements with CMS, the AMA CPT® resources, the applicable payer, or qualified coding professionals before submitting claims. MedCloudMD provides professional medical billing and revenue cycle management services to support healthcare organizations but does not guarantee reimbursement outcomes.
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