Mental Health Medical Billing & Coding Resource

Accurate billing and coding are critical for mental health practices to ensure timely reimbursements, reduce denials, and maintain compliance with payer and regulatory requirements. This resource page is designed to help mental health providers, office managers, and billers navigate the most common CPT and ICD-10 codes, understand billing challenges, and optimize their revenue cycle.

Content:

Most Common CPT & ICD-10 Codes for Mental Health
Key Billing Challenges & Compliance Notes
Tips for Maximizing Collections & Reducing Denials
Frequently Asked Questions (FAQs)
How ClaiMed Solutions Can Help

Most Common CPT & ICD-10 Codes for Mental Health

CPT Code	Description	Common Use
90791	Psychiatric diagnostic evaluation	Initial assessment
90834	Psychotherapy, 45 minutes	Individual therapy
90837	Psychotherapy, 60 minutes	Extended individual therapy
90847	Family psychotherapy (with patient)	Family/couples therapy
96127	Brief emotional/behavioral assessment	Screening (e.g., depression)
99406	Smoking cessation counseling	Preventive counseling

ICD-10 Code	Description	Common Use
F32.9	Major depressive disorder, unspecified	Depression diagnosis
F41.1	Generalized anxiety disorder	Anxiety diagnosis
F43.23	Adjustment disorder w/ anxiety	Stress-related conditions
F90.9	ADHD, unspecified type	ADHD diagnosis
F33.1	Major depressive disorder, recurrent, moderate	Chronic depression

Note: Codes and descriptions should be verified with payers and updated annually.

Key Billing Challenges & Compliance Notes

Medical Necessity: Documentation must support the diagnosis and treatment plan for every claim.
Session Duration: Use the correct CPT code based on session length (e.g., 90834 vs. 90837)
Transparent Analytics: Regular, easy-to-understand reports so you always know your financial status.
Telehealth Billing: Confirm payer requirements for telehealth modifiers and place-of-service codes.
Prior Authorization: Some services, especially for new or extended sessions, may require prior approval.
Bundled Services: Watch for bundled codes or restrictions on same-day billing for therapy and evaluation.
HIPAA & Confidentiality: Ensure all claims comply with HIPAA privacy and security regulations.