Psytx crisis ea addl 30 min
CPT 90840 is used to bill for each additional 30 minutes of crisis psychotherapy beyond the first hour when a patient is experiencing a mental health emergency requiring immediate intervention.
RVU breakdown
Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High
Billing tips
Always bill 90840 with the primary crisis code (90839) - this is an add-on code and cannot be billed alone
Impact: Billing 90840 alone results in 100% denial; proper pairing ensures you capture the full $137.47 for 90 minutes of service ($64.69 for 90839 + $72.78 for 90840)
Document exact start and stop times for the entire crisis session, clearly showing time exceeding 90 minutes
Impact: Without precise time documentation, auditors may deny the add-on code, resulting in loss of $72.78 per session
Bill 90840 for each additional 30-minute increment beyond 90 minutes (e.g., bill two units of 90840 for a 150-minute crisis session)
Impact: Each additional 30-minute unit adds $72.78 to reimbursement; undercoding by missing eligible units can cost $72.78-$145.56 per extended crisis
Verify the patient's insurance allows multiple units of 90840 per session - some payers cap at one add-on unit
Impact: Pre-verification prevents denials on extended sessions; appeals for multiple units have 40-60% success rate versus 85%+ with pre-authorization
For telehealth crisis services, append modifier 95 and verify the patient location meets originating site requirements
Impact: Incorrect telehealth coding can result in downcoding from non-facility rate ($72.78) to facility rate ($64.69), a loss of $8.09 per add-on unit
Document the crisis nature of the encounter with specific references to imminent danger, acute symptom exacerbation, or functional decompensation
Impact: Generic psychotherapy documentation triggers reviews and denials; crisis-specific language supports the 15-20% higher reimbursement for crisis codes versus routine therapy
Common denials
Billed without the primary crisis code 90839 - denial code CO-97 (services bundled or not separately payable)
How to appeal: Resubmit as a corrected claim with both 90839 and 90840 on the same claim form with matching dates of service. Include documentation showing total session duration exceeded 90 minutes.
Insufficient time documentation - denial for lack of medical necessity or invalid code
How to appeal: Submit appeal with clinical notes showing precise start/stop times totaling at least 90 minutes. Highlight crisis intervention activities performed during each time segment. Reference CPT guidelines requiring 90+ minutes for add-on billing.
Same-day billing with routine psychotherapy codes (90832-90834) - bundling denial
How to appeal: Provide documentation demonstrating distinct crisis episode separate from routine therapy, append modifier 59 to 90840, and explain why both services were medically necessary on the same day with specific clinical deterioration details.
Multiple units denied as excessive or not medically necessary
How to appeal: Submit detailed narrative explaining why extended crisis intervention beyond 120 minutes was required for patient safety. Include specific interventions at each time interval, patient response documentation, and rationale for why shorter intervention was insufficient. Cite risk assessment scores and disposition planning.
Frequently asked questions
What is the CPT code 90840 used for?
CPT 90840 is an add-on code for each additional 30 minutes of crisis psychotherapy beyond the first 60 minutes. It must be billed with primary crisis code 90839 for sessions exceeding 90 minutes total duration when treating patients experiencing psychiatric emergencies.
How much does Medicare pay for CPT 90840 in 2025?
Medicare pays $72.78 for CPT 90840 in non-facility settings and $64.69 in facility settings based on the 2025 national average rates. Actual payment varies by geographic location based on local fee schedules.
Can CPT 90840 be billed alone without 90839?
No, CPT 90840 cannot be billed independently. It is an add-on code that must always be billed with the primary crisis psychotherapy code 90839. Billing 90840 alone will result in claim denial.
How many units of 90840 can I bill for a crisis session?
You can bill one unit of 90840 for each additional 30-minute increment beyond the first 90 minutes. For example, a 150-minute crisis session would be coded as 90839 plus two units of 90840. Verify payer-specific limits as some restrict the number of add-on units.
What documentation is required to bill CPT 90840?
Required documentation includes exact start and stop times showing at least 90 minutes total duration, description of the crisis situation, specific therapeutic interventions provided, patient response, risk assessment, and clinical justification for extended session length. Time documentation is the most critical element.
Can 90840 be used for telehealth crisis services?
Yes, CPT 90840 can be billed for telehealth crisis psychotherapy sessions. Append modifier 95 (or GT depending on payer) and ensure the telehealth service meets all crisis code requirements including appropriate technology, patient location verification, and crisis-level clinical documentation.
What is the RVU value for CPT code 90840?
CPT 90840 has a total RVU of 2.25 for 2025, consisting of 1.64 work RVU, 0.55 non-facility practice expense RVU (0.3 facility), and 0.06 malpractice RVU. This converts to the Medicare payment rates of $72.78 non-facility and $64.69 facility.