CPT Code 90834: Psychotherapy, 45 Minutes with Patient

CPT code 90834 reports individual psychotherapy lasting 38-52 minutes. It belongs to the psychiatry/psychotherapy category — not the E/M family — and carries no MDM requirement. 

Code selection depends entirely on actual psychotherapy duration, and the time boundaries are strict. A 37-minute session is 90832; a 38-minute session is 90834; a 53-minute session crosses into 90837.

90834 is the most commonly billed standalone psychotherapy code, representing the standard “therapy hour” (which in practice runs 45-50 minutes). 

Its volume makes it a frequent target for medical-necessity and documentation audits. OIG’s OIG psychotherapy audit found 111 of 120 psychotherapy claims noncompliant — and the findings apply equally to 90834 and 90837 because the documentation failures were structural, not duration-specific.

What does CPT code 90834 cover?

The essential reference facts for 90834 billing.

Detail	CPT 90834
Description	Psychotherapy, 45 minutes with patient
Category	Psychiatry — Psychotherapy Services
Patient type	N/A (no new/established distinction)
MDM level	N/A (not an E/M code)
Time	38-52 minutes of psychotherapy
Common modifiers	95, 93, 90785 (add-on)
Medicare rate	~$113.90 non-facility / ~$92.67 facility (2026)
Commonly compared with	CPT 90837

Unlike E/M codes, 90834 does not distinguish between new and established patients and involves no problems/data/risk calculation. 

The entire selection question is whether the provider delivered 38-52 minutes of qualifying psychotherapy — not charting, not scheduling, not medication management.

When should you use CPT 90834?

90834 applies when actual psychotherapy reaches the 38-52 minute range.

Use CPT 90834 when

• The provider delivers individual psychotherapy (CBT, EMDR, psychodynamic, supportive, behavioral — any recognized modality)
• Actual psychotherapy time falls between 38 and 52 minutes
• The provider is not simultaneously performing a separately reportable E/M service on the same date
• The service is medically necessary and linked to a psychiatric/behavioral diagnosis

When not to use it

• Psychotherapy lasted 53+ minutes — use 90837
• Psychotherapy lasted 16-37 minutes — use 90832
• The same practitioner also performed E/M/medication management — use the E/M code + 90836 (the 38-52 min psychotherapy add-on) rather than standalone 90834
• The encounter was group psychotherapy — use 90853
• The session was a psychiatric diagnostic evaluation — use 90791/90792

How is CPT 90834 selected?

90834 has one selection criterion — actual psychotherapy duration between 38 and 52 minutes.

Time thresholds

The CMS psychotherapy rules apply strict ranges.

Code	Psychotherapy time
90832	16-37 minutes
90834	38-52 minutes
90837	53+ minutes

The descriptor says “45 minutes,” but 38 is the actual billing threshold. A session ending at 52 minutes is correctly coded 90834 — it does not “round up” to 90837 at 53.

What counts

Only qualifying psychotherapy time — direct therapeutic interaction with the patient.

What does NOT count

Pre-session chart review, post-session documentation, scheduling, care coordination, medication management, and separate psychological testing. 

Practices migrating from E/M billing often apply the broad total-time methodology to psychotherapy, which is incorrect — 90834 counts only the therapeutic minutes.

What documentation supports CPT 90834?

The same OIG findings that apply to 90837 apply to 90834 — the documentation standard is identical.

The note should include

• Clinician identity and signature
• Connection to the treatment plan
• Medical necessity for continued psychotherapy
• Actual psychotherapy duration (start/stop times or total minutes)
• Therapeutic interventions used — name the modality & specific techniques
• Patient response and progress toward treatment goals
• Target symptoms or problems addressed
• Psychiatric/behavioral diagnosis

A note reading “Psychotherapy provided for depression. Patient stable.” fails the same audit test for 90834 as it does for 90837.

How much does CPT 90834 reimburse?

Payment varies by provider credential — Medicare applies different percentages by practitioner type.

Provider type	2026 non-facility	2026 facility
Physician / Clinical psychologist	~$113.90	~$92.67
NP / PA / CNS (85%)	~$96.82	~$78.77
CSW / MFT / MHC (75%)	~$85.43	~$69.50
Commercial payers (median)	~$116.14	Varies

Medicare rates from CMS 2026 PFS national baselines. CSW/MFT/MHC rate reflects 75% of clinical psychologist amount.

MFTs and mental health counselors became Medicare-billable beginning January 1, 2024. Their 75% payment rate creates a ~$28 per-session gap compared to physicians and psychologists billing the same code.

Which modifiers apply to CPT 90834?

90834 shares the same modifier landscape as 90837 — psychotherapy modifiers, not E/M modifiers.

Modifier	When it applies
95	Synchronous audio-video telehealth
93	Audio-only telehealth (Medicare behavioral health has permanent audio-only eligibility)
90785 (add-on)	Interactive complexity — maladaptive communication, caregiver involvement, or communication complications

Modifier 25 does not apply to 90834. When a psychiatrist performs both medication management and psychotherapy, the structure is E/M + 90836 (the 38-52 min psychotherapy add-on for use with E/M) — not E/M + standalone 90834.

CPT 90834 vs. 90837 — which one fits?

The boundary is clean — both represent standalone individual psychotherapy, and the only difference is actual session duration.

Feature	CPT 90834	CPT 90837
Service	Individual psychotherapy	Individual psychotherapy
Time	38-52 minutes	53+ minutes
Descriptor	“45 minutes”	“60 minutes”
Medicare rate (2026)	~$113.90	~$167.00
Work RVU	2.56	3.78

Choose 90834 when actual psychotherapy falls between 38 and 52 minutes.

Choose 90837 when actual psychotherapy reaches 53 minutes or more. Do not round up.

The ~$53 payment difference is exactly why payers audit 90837 more aggressively. 

A practice that bills 90834 for most sessions and reserves 90837 for clinically justified extended treatment demonstrates appropriate coding behavior. The reverse pattern — 80%+ sessions at 90837 — attracts scrutiny.

What billing errors should you avoid with CPT 90834?

Five errors drive the majority of 90834 compliance issues.

1. Rounding 52 minutes to 90837 

A 52-minute session is 90834. A 53-minute session is 90837. Rounding up is upcoding.

2. Counting non-therapeutic time 

Chart review, documentation, scheduling, and care coordination do not count toward psychotherapy time. Only direct therapeutic interaction qualifies.

3. Notes that fail to identify specific interventions 

“Provided psychotherapy” does not meet documentation standards. Name the modality, the techniques applied, the target symptoms, and the patient’s response.

4. Billing standalone 90834 with same-practitioner E/M 

When a provider performs both medication management and psychotherapy, the structure is E/M + 90836 (the psychotherapy add-on). Standalone 90834 paired with E/M by the same practitioner is the wrong billing combination.

5. No treatment plan linking the session to ongoing care 

OIG’s audit specifically cited inadequate treatment plans as a primary noncompliance driver across all psychotherapy codes.

Frequently asked questions about CPT 90834

Here are some commonly asked questions about CPT code 90834: