상황
A single-location dental office needs a logical data model to track patients, appointments, procedures, insurance claims, and payments.
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01
Used separate AppointmentProcedure join table to capture many-to-many between appointments and procedures
02
Modeled insurance claim details as a child table to itemize per-procedure claim amounts
03
Included policy_number on Patient to support per-patient insurance policy details
Reusable for any small clinic or office needing an ER diagram with insurance billing, procedure tracking, and payment reconciliation.