UHID / MRN

A UHID (Unique Health Identification number) or MRN (Medical Record Number) is the permanent identifier a hospital assigns to a patient on first registration, linking every subsequent visit, admission, bill, lab result and prescription to that one person rather than starting a fresh record each time.

Why it matters in a hospital

Without a single reused identifier, the same patient can end up with several disconnected records across visits — duplicated demographics, a history that has to be pieced back together from memory, and a real risk of mixing up two patients with similar names or the same date of birth. A consistent UHID is what makes "one patient, one record" possible at all, rather than being a slogan on a brochure. It matters most in the moment a hospital needs to look something up quickly — confirming a patient's known allergies before a procedure, or checking a past lab result during a follow-up — where a fragmented record means real delay at exactly the wrong time.

How Trisvio handles it

Trisvio assigns a UHID on first registration and reuses it across every OPD visit, IPD admission, pharmacy sale and lab order, so staff can pull up a patient's full history by MR number, name or phone number instead of re-entering it each time. Any sensitive identifier a hospital does store against a record is kept encrypted (AES-256-GCM) rather than as plain text. Because the same UHID is reused everywhere, a patient's pharmacy history, lab results and past admissions all sit under one number instead of needing to be cross-referenced by name.