A recent research study by the Mental Health Association in New York State (MHANYS) found that over 60% of denied care for substance abuse and mental health care was overturned.
The reason for the denial resolution was simple: They were all preventable denials. From this research, it should not be difficult to realize that if you follow the Centers for Medicare & Medicaid Services (CMS)’s mental health billing guidelines properly, you will not get a denial in the first place.
Thus, this guide will discuss the key challenges, CMS guidelines, and best practices to help you ensure a healthier revenue cycle and shorter billing cycle.
So, continue reading!
Mental Health CMS Billing Guidelines
Listed below are the key CMS mental health billing and coding guidelines:
- All provisional telehealth services have been moved to the permanent Medicare telehealth services list. These include developmental, psychological, and neuropsychological testing codes.
- Medicare telehealth services list now includes multiple-family group psychotherapy (90849) and group behavioral counseling for obesity (G0473).
- With the 2026 update, CMS will provide direct supervision via real-time audio and video communications technology. This means the supervising practitioner can become available virtually rather than physically on-site.
- Reimbursement methodology has shifted to favor non-facility (in-office) settings. The outcome? Higher Medicare reimbursement for most outpatient psychological services, but low payouts for facility-based services.
- CMS has formally recognized health behavior assessment and intervention (HBAI) services and psychiatric diagnostic evaluations (CPT code 90791) as eligible initial visits to launch community health integration (CHI) services. However, it reimburses CPT code 98016 instead of HCPCS G2012.
- Modifier FQ is reserved for federally qualified health centers (FQHCs) and rural health clinics providing audio-only telehealth services.
Common Challenges in Mental Health Billing
The following are some of the key mental health medical billing challenges physicians encounter:
Pre-Authorization Delay
Most insurance carriers require providers to obtain prior approval for routine behavioral health services, psychological testing, and intensive outpatient programs. This adds to the mental health billing challenges.
Time-Based Coding Complexity
Mostly, mental health billing teams deal with timed-based codes. However, inaccurate tracking, such as failing to document the exact start or stop times, often triggers audit flags.
Incorrect Use of Add-On Codes
Submitting incomplete clinical documentation also triggers denials. For example, when you combine an evaluation and management (E/M) service with a psychotherapy add-on code, you must submit separate, distinct clinical documentation for both the prescribing portion and the therapy portion.
Ever-Evolving Payer Policies
Insurance payers frequently update their policies surrounding eligible platforms, audio-only vs. audio-visual modalities, and required place-of-service (POS) codes or modifiers. This keeps mental health billing teams on their toes since missing any update can lead to non-compliance.
High Audit Risk for Long Sessions
What happens when a mental health clinic has a high billing volume for CPT code 90837 that covers individual psychotherapy sessions (53 or more minutes)? It becomes a major target for insurance audits. The reason? Payers audit these claims to verify if the full documented time was clinically necessary compared to a standard session covered under CPT code 90834 (38 to 52 minutes).
Credentialing and Panel Bottlenecks
Another major mental health billing challenge is enrolling providers with commercial insurance networks and Medicaid MCOs. The reason? The process is slow and prevents new clinicians from billing for services for months at a time.
Best Practices to Streamline Mental Health Billing & Coding
Let’s review some of the mental health billing and coding best practices:
Accurately Note Start/Stop Session Time
Always document exact session start and stop times in the progress notes to prevent upcoding denials and bypass insurance audits.
Follow Intake Verification Workflow
Train your front-desk staff to perform comprehensive eligibility checks before the first appointment. This includes confirming if the mental health benefits are carved out to a separate third-party Managed Behavioral Healthcare Organization (MBHO) and verifying active authorization caps.
Implement a Centralized Tracking System
Invest in a centralized mental health billing tracking system. This will help you monitor approved session counts, authorized date spans, and precise code parameters.
Besides, you can set automated internal reminders to trigger re-authorization requests at least two sessions before the current allocation expires.
Ensure Documentation Completeness
What should be the best practice when billing an E/M service with a psychotherapy add-on code? The mental health billing teams must focus on detailed documentation that explicitly explains that the medical management and the therapeutic interventions were distinct services.
Invest in a Claim Scrubbing Tool
Utilize a claim scrubbing tool that can automatically append the correct indicators. For example, telehealth modifier 95 for synchronous audio-visual sessions, modifier 93 for audio-only modalities, and POS 10 (in home) or POS 02 (outside home) based on the patient’s exact physical location during a telehealth service.
Perform Internal Audits
One way to prevent audit risks is to conduct internal audits yourself. How? Routinely sample random clinical charts against submitted claims. Check them for structural coding mismatches, missing clinical rationale for extended sessions, or undocumented medical necessity.
This data will not only help you identify issues but also streamline your overall mental health billing and coding workflow.
Final Thoughts
To summarize, the key mental health billing guidelines primarily include accurate time tracking, comprehensive documentation, establishing medical necessity, and using appropriate modifiers.
Hopefully, this guide will help you streamline your revenue cycle by reducing the denial rate, limiting A/R days, and enhancing the collection ratio. However, if you struggle and want professional help and real results, feel free to outsource mental health billing services to NeuraBill.
Why NeuraBill? All our offerings are 100% HIPAA-compliant, and we guarantee a noticeable revenue cycle improvement (up to 10-15%).
