Psytx w pt 45 minutes
CPT code 90834 is used for a 45-minute psychotherapy session with a patient. This is one of the most commonly billed mental health treatment codes for individual therapy appointments.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Document exact start and stop times in the medical record for every session. Time-based codes require specific time documentation to survive audits.
Impact: Prevents downgrades from 90834 ($104.16) to 90832 ($78.13), protecting $26.03 per claim difference
Bill 90834 only when face-to-face time is 38-52 minutes. Sessions 37 minutes or less must use 90832; 53+ minutes should use 90837 for higher reimbursement.
Impact: Proper code selection ensures $26.03 upcharge to 90837 ($130.19) when time threshold met
For telehealth, append modifier 95 and verify Place of Service code 02 (telehealth) or 10 (patient home via telehealth) depending on payer requirements.
Impact: Ensures non-facility rate payment of $104.16 vs facility rate of $90.89, a $13.27 difference
Never bill 90834 with 90832 or 90837 on the same date of service for the same patient. These are mutually exclusive time-based codes.
Impact: Prevents automatic denial and avoids fraud risk; each session must meet distinct time thresholds
Link to specific mental health diagnosis code (F-codes ICD-10). Avoid Z-codes as primary diagnosis as many payers consider them non-covered.
Impact: Medical necessity denials can result in 100% payment loss; proper diagnosis coding ensures clean claim adjudication
For Medicare, bill incident-to services under psychiatrist NPI only when all incident-to requirements met. Otherwise use therapist's own NPI with appropriate credentials.
Impact: Incident-to billing allows psychiatrist's higher contracted rate, potentially 15-25% payment increase over therapist's individual rate
Common denials
Insufficient time documentation - claim denied or downcoded to 90832 when total session time not clearly documented in medical record
How to appeal: Submit treatment note showing exact start/stop times totaling 38-52 minutes of face-to-face psychotherapy. Include statement explaining time-based code selection per CPT guidelines. Reference CMS MLN Matters article on psychotherapy time requirements.
Frequency limitations exceeded - denied when patient has multiple sessions per day or exceeds payer's weekly/monthly visit limits
How to appeal: Provide clinical documentation justifying medical necessity for increased frequency (crisis situation, intensive outpatient level of care, acute decompensation). Include treatment plan showing specific goals addressed in each session. Request peer-to-peer review with payer's medical director.
Missing or invalid diagnosis code - denied when F-code not provided or Z-code used as primary diagnosis without covered secondary diagnosis
How to appeal: Submit corrected claim with appropriate F-code diagnosis. Include diagnostic assessment or treatment plan documenting DSM-5 diagnosis. If Z-code is appropriate primary, add secondary F-code diagnosis that supports medical necessity.
Bundling with E/M service - denied when billed same day as evaluation and management code without appropriate modifier or documentation
How to appeal: Submit documentation clearly showing two distinct services: psychiatric evaluation addressing medication management and separate psychotherapy session. Apply modifier 59 to 90834. Include separate time documentation for each service and distinct treatment notes.
Frequently asked questions
How much does CPT code 90834 pay in 2025?
The 2025 Medicare national average payment for CPT 90834 is $104.16 for non-facility settings and $90.89 for facility settings. Commercial insurance rates vary but typically range from $90-$150 depending on contract negotiations and geographic location. The code has 3.22 total RVUs (2.45 work RVU, 0.72 non-facility PE RVU, 0.05 MP RVU).
What is the time requirement for billing CPT 90834?
CPT 90834 requires 38-52 minutes of face-to-face psychotherapy time with the patient. Sessions lasting 37 minutes or less must be billed as 90832 (30-minute code), while sessions of 53 minutes or longer should be coded as 90837 (60-minute code). Time must be clearly documented with start and stop times in the medical record.
Can I bill 90834 for telehealth therapy sessions?
Yes, CPT 90834 can be billed for telehealth psychotherapy sessions using real-time audio-video technology. Append modifier 95 to indicate telehealth delivery and use Place of Service code 02 or 10 depending on payer requirements. Medicare reimburses telehealth at the non-facility rate of $104.16 with no geographic restrictions through 2025.
What is the difference between CPT 90834 and 90837?
The difference is session length: 90834 is for 45-minute sessions (38-52 minutes) paying $104.16, while 90837 is for 60-minute sessions (53+ minutes) paying $130.19. Both codes represent individual psychotherapy but 90837 reimburses $26.03 more due to the longer time requirement. Use the code that matches your actual documented face-to-face time.
Can 90834 be billed with an E/M code on the same day?
It is possible but requires careful documentation showing two distinct services. Typically, a psychiatrist would perform medication management (E/M code) and separate psychotherapy (90834) in the same visit. Append modifier 59 to 90834 and document separate times and clinical notes for each service. Many payers scrutinize these claims or have policies limiting same-day billing.
What diagnosis codes can be used with CPT 90834?
Any mental health diagnosis code from the F-code chapter of ICD-10 can support 90834, including depression (F32.x, F33.x), anxiety disorders (F41.x), PTSD (F43.1x), bipolar disorder (F31.x), and adjustment disorders (F43.2x). Avoid using Z-codes as the primary diagnosis since many payers consider them non-covered conditions without a secondary F-code diagnosis.
How many times per week can 90834 be billed for the same patient?
Medicare does not have a specific frequency limitation for 90834, but medical necessity must be documented for each session. Commercial payers often limit coverage to 1-2 sessions per week without prior authorization. More frequent sessions require documentation of acute symptoms, crisis intervention, or intensive outpatient level of care. Billing multiple sessions in one day requires modifier 76 and strong clinical justification.