Submitting a medical reimbursement claim with Abu Dhabi National Insurance Company (ADNIC) can be completed seamlessly online through the official ADNIC mobile application or web portal by uploading required documentation such as completed claim forms, doctor prescriptions, itemized original invoices, and diagnostic reports. For claims exceeding specific monetary thresholds or requiring physical audits, documents must be mailed or submitted directly through customer service branches or designated corporate human resource channels.