Evidence - As introduced, states that in certain civil actions a licensed nurse practitioner or licensed physician assistant who is properly qualified as an expert witness may testify as to certain medical findings. - Amends TCA Title 24; Title 29, Chapter 26 and Title 50, Chapter 6.

HB 2155 allows licensed nurse practitioners and physician assistants to testify as expert witnesses about medical findings - including diagnosis, treatment costs, and injury causes - in most civil lawsuits. It directly affects these healthcare providers and civil court cases where their expertise is relevant, such as personal injury claims. However, the bill explicitly excludes healthcare malpractice cases (under Title 29) and workers' compensation claims (under Title 50), including testimony about medical ratings or work-related injury determinations. The law amends Tennessee evidence rules to clarify these qualifications and limitations without changing existing case types.