Medical billing is the process of translating healthcare services (visits, treatments, diagnostics) into standardized claims submitted to insurers or payers. It involves medical coding, claims submission, verification, denial management, and follow-ups. Recent developments include automation, AI-enabled coding tools, cloud-based platforms, and increasing use of outsourced billing & revenue cycle management (RCM) to reduce errors, improve compliance, speed up turnaround, and enhance patient experience. Key focus areas also include interoperability, security of patient data, regulatory alignment, and reducing administrative burden on clinicians.