The UHID number — Unique Health Identification number — is a hospital-assigned patient identifier that most Indians encounter every time they register at a major hospital, yet few understand its significance for managing their medical records. Noting down and storing your UHID can save time, prevent paperwork repetition, and ensure continuity of care at follow-up visits and readmissions.

What Is a UHID Number?

A UHID (Unique Health Identification) number, also called a Patient ID, Hospital Registration Number, or MR Number (Medical Record Number) in different hospitals, is a unique identifier assigned to you by a specific hospital when you register as a patient for the first time.

Every time you visit that hospital again — whether for an OPD visit, a test, an emergency, or an admission — the hospital uses your UHID to pull up your entire history at that facility: all previous consultations, prescriptions, test results, and discharge summaries stored in their system.

Unlike your Aadhaar number (national ID) or ABHA number (national health ID), a UHID is hospital-specific. Apollo Hospitals will give you an Apollo UHID. Fortis will give you a Fortis UHID. The government civil hospital will give you a separate registration number. You can accumulate multiple UHIDs across different hospitals over a lifetime.

How to Find Your UHID Number

Your UHID appears on:

• The top of most hospital-issued prescriptions and OPD receipts ("Patient ID", "MR No.", "Reg. No.", or "UHID")
• Your hospital registration card or patient card (issued at first visit)
• Discharge summaries from hospitalisation
• Hospital appointment slips and consultation bills
• Lab reports issued by hospital diagnostic departments
• The header of follow-up appointment slips

Some hospitals print the UHID as a barcode or QR code on their stationery. At larger private hospital networks, the same UHID may work across multiple branches of the same chain.

UHID vs ABHA: What Is the Difference?

These two identifiers are commonly confused. Here is a clear comparison:

In practice: Your UHID is a key to your records at one hospital. Your ABHA is a key to records at any ABDM-enrolled hospital in India.

Neither replaces the other — both are useful for different purposes.

Why Noting Your UHID Matters

Faster Return Visits

When you arrive at a hospital for a follow-up, providing your UHID at the registration desk lets the staff pull your file immediately without re-entering all your details. For large government hospitals that see thousands of patients a day, this can cut waiting time significantly.

Accurate Record Retrieval for Readmission

If you are admitted as an emergency at a hospital where you have previously been treated, the UHID allows doctors to access your previous records — old ECGs, blood test baselines, allergy notes, previous discharge summaries — within seconds. In emergencies, this can be life-saving.

Referral Continuity

When a doctor at one facility refers you to a colleague in the same hospital, they typically share your UHID rather than reprinting all documents. Knowing your UHID means you can provide it to the receiving specialist without waiting for a formal referral note.

Billing and Insurance

For health insurance claims involving hospitalisation, the insurer and Third Party Administrator (TPA) often require the patient's registration number / UHID on claim documents. Forgetting this can delay reimbursement or cashless authorisation.

Avoiding Duplicate Registrations

Some patients at large hospitals inadvertently register twice — particularly if they attended an emergency and a separate OPD visit at different times. Duplicate registrations split a patient's records across two files, creating confusion. Providing your UHID at registration prevents duplicates.

How Hospitals Use UHID in Their Systems

Large hospitals in India operate Hospital Management Information Systems (HMIS) or Hospital Information Systems (HIS) that use the UHID as the primary patient identifier. When you share your UHID:

• The registration desk verifies identity and pulls the existing patient file
• The pharmacy system can see previous prescriptions to check for drug interactions
• The lab can compare new results with historical baselines
• The specialist can view all previous consultations and reports from that hospital in one view
• Billing can generate a consolidated account summary

Well-known HMIS platforms used in Indian hospitals include Meddbase, Insta, Doctrin, SoftClinic, and similar systems. Each hospital chain typically has one standardised system.

How Storing UHID in Ayu Prevents Repeating Paperwork

A typical urban Indian patient with a chronic condition may have UHIDs at 3–5 hospitals over time — their neighbourhood government hospital, a private hospital they used for a surgery, a specialty hospital they visited for a particular condition, and others.

When you store your UHID for each hospital in Ayu alongside your medical records from that hospital:

• You can provide the correct UHID at each hospital's desk without carrying a wallet full of patient cards
• Family members accompanying elderly parents know the exact UHID for each hospital
• In an emergency, whoever is accompanying the patient can provide the correct ID even if the patient cannot communicate
• You can cross-reference which test results are associated with which hospital's record

How to record your UHID in Ayu:

1. Find the UHID on your most recent prescription or OPD slip from each hospital
2. Add it to the hospital's profile in your Ayu account
3. Tag it alongside the associated test reports and prescriptions from that hospital
4. If managing an elderly parent's records, note their UHID at every hospital they regularly attend — especially their primary government hospital, their cardiologist's hospital, and their diabetes clinic

The Future: UHID Merging With ABHA

The Ayushman Bharat Digital Mission's long-term goal is for UHID to eventually be replaced — or linked — to ABHA, so that registering at any ABDM-enrolled hospital with your ABHA number is sufficient to pull all your records across the national system. Several major hospitals are already linking their UHID systems to ABHA as part of ABDM integration.

Until that integration is fully widespread, noting and storing your individual hospital UHIDs remains the practical solution for ensuring smooth healthcare interactions.

Store your UHID and all hospital records in Ayu

1. National Health Authority. Ayushman Bharat Digital Mission — Health Records. https://abdm.gov.in/
2. National Library of Medicine. Hospital Management Information Systems in India. https://pubmed.ncbi.nlm.nih.gov/30760974/
3. National Health Authority. ABDM Facility Registry. https://facility.ndhm.gov.in/