- Use COALESCE to check both bed_master.current_ipd_id and bed_assignment_history
- Join with bed_assignment_history where released_date IS NULL for active beds
- Handles cases where bed is assigned in history but current_ipd_id not set
- Fixes bill print showing blank Bed No when assignment exists in history
- Add bed_master join to fetch current bed assignment via current_ipd_id
- Add ipd_master_doc_list and doctor_master joins to fetch assigned doctors
- Use GROUP_CONCAT to handle multiple doctors in single query
- Fixes bill print displaying empty Bed No and Doctor Name fields
- Safe delete for empty IPD charge groups with CSRF-safe AJAX
- Migration: add sort_order to ipd_item_type (backfilled)
- Sort order UI on create/edit/list views; persist in controller/model
- Up/Down swap buttons on group list (AJAX swap endpoint + CSRF refresh)
- Fix 500 on edit screen: restore missing getItemTypeById() in ItemIpdModel
- IpdBillingModel: propagate sort_order ordering to ipd-charges and bill-details tabs
- Billing IPD Charges tab: Bedside Clinical/Nursing Charge and Doctor Visit Charge panels now collapsible, start collapsed
