Mutex Inc. (headquartered in Hongo, Bunkyo-ku, Tokyo; Representative Director Kohei Kumazawa; hereinafter "mutex"), provider of Reze, an AI-powered medical claims support tool for healthcare institutions, has released the "Billing Operations Workspace," a centralized platform integrating all workflows related to medical billing operations. This new feature consolidates previously offered pre-submission checks and symptom description generation into a single workspace. It serves as the core foundation for Reze's vision of achieving full automation of medical claims processes, enabling the phased rollout of next-generation AI functionalities currently under development—including AI for add-on suggestions, comment generation, and DPC coding. Key Features of This Release - Consolidation of all billing processes into one unified workspace. By integrating previously fragmented workflows such as pre-submission checks and symptom description generation, the workspace seamlessly connects tasks that medical billing staff typically handle at month-end and month-beginning. - Future AI features—including Add-on Suggestion AI, Comment Generation AI, and DPC Coding AI—will be integrated into this workspace. Reze will use this platform as a launchpad to progressively deploy AI agents for claims processing, gradually expanding the scope of automation. - The ultimate goal is full automation of medical billing operations via AI agents. Reze is now moving forward in earnest toward realizing a future where insurance claims are automatically completed the moment a physician enters a medical record—with the aim of achieving this by 2027. Background: Healthcare Institutions Face Growing Financial Pressure Amid Increasingly Complex Reimbursement Systems According to a survey by the Japan Hospital Association, 74.9% of hospitals report operating deficits. Amid repeated revisions to medical reimbursement schedules, optimizing DPC coding, preventing missed billing add-ons, ensuring accurate no