This optometry billing and coding cheat sheet for hospitals outlines the latest 2026 guidelines for accurate claim submission and reimbursement. It explains key CPT and E/M codes, ICD-10 diagnosis selection, modifier usage, and documentation requirements for hospital-based optometry services. The guide also highlights the difference between medical and routine vision billing, split billing rules, and compliance best practices to help hospitals reduce denials, improve coding accuracy, and maintain efficient revenue cycle performance.