HIS vs HMS vs HMIS vs EMR vs EHR: what each means in India Five acronyms, three kinds of software, one government portal.

EMR and EHR are kinds of patient record: an EMR is the record kept by one provider, and an EHR is the patient's record gathered across providers. HIS and HMS are names for software that runs an entire hospital, from admission to discharge. HMIS means two things in India: the Health Ministry's Health Management Information System at hmis.mohfw.gov.in, a public health reporting portal, and, in vendor and some government documents, hospital software. A single-doctor or small OPD clinic usually needs none of the hospital systems; it needs clinic software with an EMR inside it.

The short version

What is an EMR?

An EMR is the digital record a provider writes and keeps for its own patients. The Health Data Management Policy published under the National Digital Health Mission (the earlier name of the Ayushman Bharat Digital Mission, ABDM) defines electronic medical records as "a repository of records that is stored and used by the HIP generating such records to support patient diagnosis and treatment". HIP here means health information provider, the hospital, clinic or lab that creates the record. The Ministry of Health and Family Welfare's Electronic Health Record (EHR) Standards for India 2016 say the EMR "could be considered as special case of the EHR, restricted in scope to the medical domain or at least very much medically focused".

In an OPD, the EMR is the digital parchi: complaint, findings, diagnosis, vitals, the prescription and every earlier visit of that patient at your clinic. The same record-keeping duties apply as on paper; our post on how long a clinic must keep medical records covers them.

What is an EHR, and how is it different from an EMR?

An EHR is the patient's record across every provider they have seen. The MoHFW standards define electronic health records as "one or more repositories, physically or virtually integrated, of information in computer processable form, relevant to the wellness, health and healthcare of an individual, capable of being stored and communicated securely and of being accessible by multiple authorized users". ABDM's Health Data Management Policy uses almost the same words and adds: "Essentially, an EHR is a collection of various medical records that get generated during any clinical encounter or events".

The difference is scope. Your EMR stops at your clinic's door. An EHR joins your record with the lab's report, the hospital's discharge summary and the next doctor's prescription. In ABDM's design the EHR is not one big central file. The same policy says electronic medical records "shall be stored at the health facility where such records are created", while electronic health records are maintained "as a collection of links to the related medical records". So a clinic does not buy EHR software; its EMR software connects to ABDM, and the patient's EHR is built from those links with the patient's consent.

In everyday Indian sales talk, EMR and EHR are often used as if they were the same product. When a vendor says "EHR", ask whether the software shares records with other providers through ABDM, or only stores your own clinic's visits. If it is only your own visits, it is an EMR, which is fine for most clinics.

Where the PHR fits

A PHR, or personal health record, is the patient's own copy. ABDM's policy defines it as "a health record that is initiated and maintained by an individual". ABDM's guidelines describe PHR apps as the front end that lets a person create an ABHA address, "discover & link health records from various HIPs", view them and grant consent to share them. The PHR is the patient's tool, not the clinic's.

What are HIS and HMS?

HIS (hospital information system) and HMS (hospital management system or software) are names vendors use for software that runs a whole hospital. We found no government definition of either term. The MoHFW EHR glossary uses "HIS" only as another name for a payer's data system, a Health Information System, which shows how loose the acronym is.

What the term usually covers is easiest to see in a government example. NIC's e-Hospital describes itself as "a workflow based Integrated HMIS over cloud" and "a generic application, which addresses all the major functional areas of a hospital". Its listed modules include patient registration for OPD, casualty and appointments; admission, discharge and transfer for inpatients, which "commences when the patient is being registered and allotted bed in the ward"; billing; and a clinic module where doctors record visits, diagnosis and prescriptions and order investigations, procedures and medicines.

In that list, OPD registration and the clinic module are the parts an OPD uses. The rest exists for beds, wards and departments a clinic does not have. Our HMS vs clinic software guide lists the modules side by side.

What does HMIS mean? Two different things

This is the term that causes the most confusion, because the Government of India uses it in two senses.

1. HMIS the government portal

At hmis.mohfw.gov.in, HMIS is the Health Management Information System. The portal describes itself as "a Government to Government (G2G) web-based Monitoring Information System that has been put in place by Ministry of Health & Family Welfare (MoHFW), Government of India to monitor the National Health Mission and other Health programmes and provide key inputs for policy formulation and appropriate programme interventions". It was launched in October 2008, and the portal says around 2.25 lakh health facilities upload facility-wise service delivery data every month, training data every quarter and infrastructure data every year.

It records counts, not patient charts: reproductive, maternal and child health, immunisation, family planning, vector-borne disease, tuberculosis, morbidity and mortality, OPD and IPD services and surgeries. It is reporting, not hospital software, and you cannot run a clinic on it. The portal does list reporting formats for private facilities, including one for "Other Primary Private Facilities". If your district health office asks your clinic to report, this is the system it means; ask the office which format applies to you.

2. HMIS as hospital software

Vendors, and some government documents, use HMIS to mean hospital management information system, the same thing as HIS or HMS. NIC's e-Hospital calls itself an "Integrated HMIS". ABDM's 2022 guidelines for health information providers list "HMIS/LMIS used by Health Facilities" among the applications that connect to ABDM, and say the provider's "hospital / lab information management system or electronic medical record software" must be ABDM compliant. In both places HMIS is software inside a hospital, not the ministry portal.

Where clinic software fits: the OPD tier

Clinic management software is the outpatient tier. It covers what happens between a patient walking in and walking out: registration, the token queue, the consultation, the prescription, the consultation fee and the day's reports. The EMR sits inside it, because the receptionist's registration becomes the doctor's chart. Our EMR software page explains how the record side and the front-desk side share one patient record.

ABDM treats clinics as record creators too. Its guidelines say "All hospitals, diagnostic centers, clinics, public health programs, telemedicine players, etc. are encouraged to become HIP", using ABDM-compliant software. A clinic can do that through its EMR without buying an HMS. Registering the clinic and the doctor on ABDM's facility and professional registries is a separate step, covered in our post on ABDM HFR and HPR registration.

When does a clinic not need an HMS?

Run through this list before you take an HMS demo.

1. Do you admit patients overnight or keep beds? If no, you have no use for admission, ward or discharge modules, which are the core of an HMS.
2. Do you sell or dispense medicines from your own stock? If no, you do not need pharmacy inventory. If a chemist next door fills your prescriptions, your software only needs to print a clean prescription.
3. Do you run your own lab or imaging? If no, you do not need lab order entry or result modules; patients bring reports back and you note them in the visit.
4. Do you bill insurers or TPAs directly? If no, you do not need an insurance desk. An OPD collects a consultation fee in cash, UPI or card.
5. Do several departments bill at one central counter? If no, you need fee billing per visit, not hospital billing.

If every answer is no, buy clinic software. If you answered yes to the first question, you are running beds and should look at an HMS, even if your OPD is busier than your wards.