NABH accreditation explained: what those four letters on your hospital bill actually mean
NABH is a voluntary hospital quality certification. It affects your CGHS rates, your insurance reimbursements, and sometimes the room rent you pay. Here's what the certification actually covers, what it doesn't, and how to check your hospital.
Published · Jaanch
If you've recently been admitted to a private hospital in India, look at the bottom corner of your discharge bill. There's a fair chance it carries a small logo with the letters NABH and a certificate number underneath.
Most patients glance at it and move on. They shouldn't, because that logo changes what your hospital can charge under CGHS, what your insurance pays, and occasionally what kind of room you can book.
This post is a practical guide to NABH for patients. What it is, what it covers, what it doesn't, and the handful of moments when knowing matters.
What NABH actually is
The National Accreditation Board for Hospitals and Healthcare Providers sits under the Quality Council of India, which itself reports to the Department for Promotion of Industry and Internal Trade. So it's a government-affiliated body but operates with the independence of a standards organisation.
Its job is to certify that a hospital meets a published set of standards on patient safety, clinical processes, infection control, infrastructure, and so on. The standards run to around 600 measurable points across ten chapters. An applicant hospital is audited against these points by trained NABH assessors over several days.
Roughly 1,300 hospitals in India hold full NABH accreditation today. Sounds like a lot until you remember India has over 70,000 private hospitals. So about 2% of the private sector is accredited. Which is both the reason it's a real signal of quality, and the reason the absence of accreditation isn't itself a defect.
The four levels
NABH doesn't operate a single binary "accredited or not". There are four distinct tiers, and they show up differently on bills and rate sheets:
Full accreditation. The big one. Three years validity, full audit, all chapters. This is what people usually mean by "NABH accredited".
Entry-level certification. A starter tier for hospitals working toward full accreditation. Validity is two years and the standard count is reduced. It's most common for smaller nursing homes and standalone clinics that want to credibly compete for CGHS-style empanelment.
Pre-accreditation. A still earlier tier, often used by hospitals to publicly commit to the accreditation journey while they fix the gaps needed for entry-level.
Provisional / withdrawn. Either the hospital was accredited and the certificate has lapsed (pending renewal), or NABH withdrew the accreditation after a complaint or surveillance finding. The patient-side signal is the same in both cases: treat it as not currently accredited.
If you see the NABH logo on a bill, the certificate number on the bill itself tells you the tier. The first few characters encode it. The NABH website also publishes the live list, though the search is fiddly.
Why the CGHS rate schedule cares
This is the moment where NABH starts to matter financially. CGHS — the Central Government Health Scheme — publishes its hospital procedure rate schedule with two columns. NABH rate and non-NABH rate. The NABH rate is typically 15% higher than the non-NABH rate for the same procedure, because the regulator's view is that accredited hospitals carry higher quality compliance costs and should be compensated for it.
For an angioplasty under the current Tier 1 city schedule, that gap comes to roughly Rs 30,000. For a hip replacement, it can be over a lakh.
If your hospital is billing a CGHS or CGHS-aligned rate (some insurers peg their tariffs to CGHS too), the question of which column applies is worth checking. A non-accredited hospital billing the NABH column is the overcharge pattern this rule catches. We've written a separate post on exactly that question with worked examples.
Why insurance underwriting cares
Most major health insurers in India treat NABH accreditation as a proxy for low-claim-volatility care. That doesn't always show up directly on your bill, but it shows up indirectly. NABH hospitals tend to get higher pre-authorisation approval rates, faster cashless processing, and fewer disputed line items. A non-NABH hospital running the same procedure may see the insurer's TPA asking for more clarifications.
Some corporate group health plans go further and tier their hospital networks by accreditation. The plan is "preferred" at NABH hospitals (full reimbursement), "covered" at non-NABH (reduced reimbursement), and "out-of-network" elsewhere. Your HR portal usually has the list.
What NABH does not guarantee
Worth being honest about the limits.
NABH is a process and infrastructure standard. It checks that the hospital has documented procedures, that infection control protocols exist, that consent forms are properly used, that infrastructure meets the standard. It does not directly certify the clinical competence of any individual doctor. A NABH hospital can absolutely have a single underperforming consultant, just as a non-NABH hospital can have an excellent one.
It also doesn't certify pricing. Two NABH hospitals can have very different price lists for the same procedure and both be fully compliant. NABH says nothing about whether you're being charged fairly. The relevant references for that question are NPPA ceilings (for medicines) and CGHS rates (as a benchmark for procedures).
And accreditation has been criticised on its own grounds. The audit windows are pre-announced. The cost of accreditation (anywhere from Rs 10 to Rs 50 lakh depending on hospital size) puts it out of reach for many honest, well-run smaller hospitals. So a non-NABH hospital isn't a red flag, especially in tier 2 and tier 3 cities. It's just an absence of a specific signal.
How to actually check your hospital
A few ways, in order of effort:
The fastest is the certificate number itself. If your bill prints one, the format and prefix tell you the tier. A 12-character certificate number starting with H is full accreditation. Starting with E is entry level. Starting with PA is pre-accreditation.
The next step is the NABH public list. It lives at nabh.co under "Accredited Hospital Search". Type your hospital name and city. The list also shows the certificate validity dates. If your bill claims NABH but the certificate expired six months ago, that's worth flagging.
Our audit engine does this check automatically on every bill we process. The hospital name from the bill header is matched against our NABH list, and the audit report carries a short metadata note: NABH accredited, yes / no / could not determine. We don't fire any flag on the absence of accreditation, for the reasons above.
Three moments when knowing actually matters
If you're going to take one practical thing away:
When you're choosing between two hospitals at similar prices, NABH is a credible tiebreaker. The standards aren't a guarantee of good medicine, but they're a guarantee of basic operational discipline.
When you're filing a CGHS claim or a CGHS-aligned insurance claim, the NABH versus non-NABH question determines which rate column applies. Most bills assume the NABH column. Check that the hospital is actually entitled to it.
When you have an open dispute, the NABH framework includes a complaint escalation route. Accredited hospitals are obligated to respond to NABH complaints within timelines. Non-accredited hospitals have no such obligation. So accreditation is a small advantage when you actually need the regulator on your side.
Sources: NABH Accreditation Standards (5th edition), NABH website accredited-hospital list, CGHS rate schedule (current revision). NABH classification on bills sampled from real hospital invoices.