Veterinary clinic management ER diagram models the complete patient-to-billing workflow with six core entities: Owner, Pet, Veterinarian, Appointment, Treatment, and Invoice. Data flows from Owner through Pet to Appointment, where Veterinarian and Treatment records connect, with Invoice linking back to Owner and Appointment for billing. This schema enforces referential integrity across pet records, appointment scheduling, treatment documentation, and financial tracking—essential for HIPAA-adjacent compliance and operational efficiency. Fork and customize this diagram on Diagrams.so to match your clinic's specific workflows, add additional entities like MedicalHistory or Prescription, or export as .drawio to integrate with your database design tools.