Generally revise health care laws

This bill amends Montana's health care laws by updating definitions for terms used in health insurance and utilization review processes. It directly affects health insurance issuers, healthcare providers, and patients by clarifying what constitutes an adverse determination, clinical review criteria, and other key concepts in coverage decisions. The legislation establishes specific meanings for terms like "case management," "concurrent review," and "authorized representative" to ensure consistency in how health care services are evaluated and paid for. Additionally, the bill provides rulemaking authority to the state insurance department to implement these updated definitions and procedures.