Medical billing for behavioral health

Where the money leaks

• Time-based codes. Psychotherapy codes are defined by duration, and the documented time has to support the code billed. A note that does not record start and stop times is a denial waiting for an audit.
• Authorisation and session limits. Many plans authorise a set number of sessions. Running past the authorised count produces denials for care that was already delivered, which is the worst kind.
• Telehealth. Place-of-service codes and modifiers for behavioral telehealth have changed repeatedly, and they vary by payer and by state. Billing last year’s combination is a quiet, recurring denial.
• Add-on codes for crisis, complexity and extended sessions, which are frequently left off entirely.
• Collaborative care and case management codes, underused by practices that are genuinely doing the work.
• Parity. Federal law constrains how differently plans may treat behavioral health benefits. A limit that looks routine is sometimes worth challenging.

Confidentiality

Behavioral health records carry obligations beyond ordinary HIPAA. Substance use disorder records held by covered programs fall under 42 CFR Part 2, which restricts disclosure more tightly than HIPAA does and does not treat payment as a blanket permission. Billing has to be built around that, not retrofitted to it.

We work under a signed Business Associate Agreement, keep access controlled and logged, and never ask for patient detail through the website, the chat widget or ordinary email.

High volume, thin margins

A behavioral health practice often runs many short sessions rather than a few large claims. That changes what matters: a 3% denial rate on a high-volume, lower-value caseload is a lot of individually small claims, each costing more to rework than it is worth. The economics reward getting it right at submission, and reward catching authorisation limits before the sessions happen.