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Costs & Insurance

Pre-Authorisation for a Biopsy — How Insurance Approval Works

If your biopsy requires a hospital admission or day-care procedure, your insurer will almost certainly ask for prior approval before they pay the bill. Getting that approval — and knowing what to do if it is delayed or refused — is the paperwork step most people do not see coming.

Medically reviewed by Dr. T. Raghavender Reddy, Medical Oncologist, MBBS · DM (Medical Oncology) · MD (Radiation Oncology) · Last reviewed September 2026

  • Required for most hospital biopsies — Without pre-authorisation, cashless cover does not apply and you pay the full bill upfront.
  • Documents matter more than anything else — A missing referral letter or unsigned form is the most common cause of delay.
  • Timeline is one to three working days — Emergency biopsies can be cleared faster. For planned procedures, submit early.
  • Refusal is not final — You can appeal to your insurer, escalate to your TPA, or approach IRDAI's grievance system.
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Most biopsies done in hospital — whether day care or inpatient — require pre-authorisation from your insurer before the procedure. Without it, cashless cover does not apply and you pay the full bill upfront. Approval takes one to three working days for planned procedures. You can appeal if it is refused.

How much does a biopsy cost, and will insurance cover it?

Biopsy typeIndicative cost range (2025–26)Typically covered by insurancePre-auth usually required
Fine needle aspiration cytology (FNAC)₹500–2,500Varies; often excluded as outpatientUsually not — check your policy
USG-guided core needle biopsy₹8,000–20,000Yes, if day care or inpatientYes
CT-guided core needle biopsy₹18,000–40,000YesYes
Surgical or excision biopsy₹30,000–80,000YesYes
Bone marrow biopsy₹4,000–12,000YesYes

What happens during the pre-authorisation process?

  1. Get a written recommendation from your doctor

    Your oncologist or treating doctor provides a letter stating the biopsy is medically necessary, the type of procedure planned, and the intended date. This letter is the document the insurer acts on — without it, the application cannot proceed.

  2. Collect the supporting documents

    You will need your insurance policy card or number, a government-issued photo ID, the doctor's recommendation letter, any supporting investigation reports (such as a scan or blood test), and the hospital's pre-auth request form. Ask the hospital's insurance desk what your TPA specifically requires — the list varies by insurer.

  3. Submit to your TPA or insurer

    Most hospitals with a cashless desk submit on your behalf. If you are at a non-network hospital or submitting yourself, send documents to your TPA's portal or email. Keep copies of everything you send and note the date and method of submission.

  4. Insurer reviews the request

    The insurer or TPA may approve, partially approve, query the request for more information, or reject. They may contact your doctor directly to verify medical necessity. An unanswered pre-auth request is not an approval — follow up in writing if you have not heard back within two working days.

  5. Receive the approval letter

    An approval letter states the sanctioned amount and the validity period — usually a few days around the planned procedure date. The approved amount may be lower than the estimated bill. The shortfall is your responsibility and is collected at discharge.

  6. Proceed with the biopsy

    Present the approval letter at the hospital's insurance desk before or on the day of the procedure. If the insurer does not respond in time and the biopsy is urgent, ask the hospital to shift to reimbursement mode and document that you made every effort to obtain approval.

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Cashless pre-authorisation or reimbursement: what is the difference?

Cashless (pre-auth approved)Reimbursement (no prior approval)
When you applyBefore the biopsyAfter the biopsy — within 30 days of discharge
Who pays the hospitalInsurer settles directly with the hospitalYou pay in full at discharge; claim later
Your upfront paymentCo-pay or shortfall onlyFull bill before you leave
Documents at hospitalApproval letter and insurance cardAll bills, lab reports, and discharge summary
Processing timeOne to three working days before procedureFifteen to thirty working days after submission
Main riskApproved amount may be less than the actual billClaim may be partially or fully rejected after you have paid

Did you know?

A pre-authorisation letter is not a guarantee of full payment. It states the amount sanctioned based on your initial estimate — if the actual bill is higher, you pay the difference at discharge.

This is the most common source of surprise bills after a biopsy. Ask the hospital's insurance desk what their policy is for bill overruns before the procedure, not after.

Source: IRDAI guidelines on standardisation of health insurance claims processes

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Common questions

Frequently asked questions

Is pre-authorisation required for every biopsy?

Not for every type. A fine needle aspiration done in a clinic as an outpatient procedure usually does not require pre-auth and is often not covered by insurance at all. Any biopsy that requires a hospital bed, day-care admission, or sedation almost always does. When in doubt, call your insurer or TPA before the appointment — asking takes ten minutes; being refused cashless at the counter takes much longer to resolve.

How long does pre-authorisation take?

For planned procedures, most insurers respond within one to three working days. For emergencies, many TPAs have a faster track, sometimes within a few hours, depending on the insurer and whether the hospital's insurance desk can reach the right contact quickly. IRDAI guidelines require insurers to acknowledge and act on pre-auth requests within defined timeframes. If you have not heard back within two working days, follow up in writing — silence is not approval.

What documents do I need for the pre-auth application?

The core documents are your insurance policy card or number, a government-issued photo ID, your doctor's written recommendation explaining why the biopsy is medically necessary, any supporting investigation reports such as a scan or blood test result, and the hospital's pre-auth request form. Your TPA may also ask for a detailed clinical history or a formal pathology request letter. Ask the hospital's insurance desk for the exact list your TPA requires, as it varies between insurers.

What if the pre-authorisation is refused?

A refusal at first is not final. Ask your insurer or TPA for the specific reason in writing. Common reasons include a missing document, a procedure not covered under your plan, or a question about medical necessity. If it is a document issue, resubmit immediately with the gap filled. If it is a coverage dispute, ask your oncologist to write a detailed medical necessity letter and resubmit. If the insurer still refuses, you can escalate through IRDAI's Bima Bharosa grievance portal or approach the Insurance Ombudsman for your region.

What if the approved amount is less than the actual bill?

The approved amount is based on your initial cost estimate. If the actual procedure costs more — which can happen if the biopsy needs additional samples or if histopathology processing is more detailed than anticipated — the hospital will charge you the difference at discharge. Ask the insurance desk before the procedure how they handle bill overruns. Keep all bills and ask for an itemised receipt, which you may need if you want to claim the shortfall separately under reimbursement mode.

Does PM-JAY or a state scheme cover biopsies?

Yes. Under PM-JAY (Ayushman Bharat), biopsies are included in the covered package list for eligible beneficiaries. At empanelled hospitals, the pre-authorisation is submitted by the hospital through the ABDM portal — you do not fill in paperwork yourself. State schemes such as Aarogyasri in Telangana and Andhra Pradesh also cover cancer diagnostic procedures including biopsies at empanelled centres. Confirm your scheme's coverage at the hospital's dedicated help desk when you register for your appointment.

Full index

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If Your Result Is Benign

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