By Syed Muhammad Raza Shah, Insurance Consultant — 12+ years advising UAE residents and businesses on medical, motor and general insurance. Last updated: October 2026.
In short: Health insurance claim rejected in UAE? Get the reason in writing, answer it with a detailed doctor’s report and evidence, and appeal to the insurer. If it’s still unresolved 30 days after a formal complaint, escalate to DHA, DoH or Sanadak.
Leila is a 35-year-old HR business partner in Dubai with a three-year-old son. In April 2026 her orthopaedic surgeon recommended an MRI and then knee arthroscopy for a torn meniscus she’d picked up playing padel. The hospital sent a pre-approval request to her insurer. Two days later the answer came back: “Rejected – not medically necessary.”
Leila was in pain, the hospital quoted AED 21,000 for the procedure, and she almost gave up and paid. Then a colleague who’d been through the same thing told her something useful. Many rejections are decisions made on incomplete information, not final answers. The first request had included the MRI report but not the surgeon’s notes on six weeks of failed physiotherapy.
The hospital resubmitted with the full clinical history. The insurer approved it within 48 hours. Leila paid only her co-pay.
Not every rejection can be reversed. Many can, especially those based on missing documents, coding errors or misunderstandings. This guide explains why claims are rejected, how to appeal step by step, and when to escalate to DHA, DoH or Sanadak, the UAE’s independent insurance ombudsman service.
First: What Kind of Rejection Is It?
There are two types, and you appeal them differently.
| Type | What it means | Who usually acts first |
|---|---|---|
| Pre-approval (pre-authorisation) rejection | The insurer declined to approve planned treatment before it happens | The hospital or clinic resubmits with more information |
| Reimbursement or post-treatment rejection | You paid or were billed, and the insurer refused to pay the claim | You (the member) submit the appeal |
The Eight Most Common Reasons UAE Health Claims Are Rejected
| # | Reason | Can it usually be fixed? |
|---|---|---|
| 1 | Missing or incomplete medical information | Yes. Resubmit with full notes |
| 2 | “Not medically necessary” | Often. Provide evidence of symptoms, failed conservative treatment and guideline support |
| 3 | Coding or billing errors by the provider | Yes. Provider corrects and resubmits |
| 4 | No pre-approval obtained for treatment that needed it | Sometimes, especially for emergencies |
| 5 | Out-of-network provider | Rarely, unless it was an emergency or no in-network provider was available |
| 6 | Waiting period (PEC, maternity) | Rarely, unless the waiting period was applied wrongly (e.g., continuity ignored) |
| 7 | Excluded benefit (e.g., cosmetic, some dental) | Rarely. Check the exact exclusion wording |
| 8 | Non-disclosure of a pre-existing condition | Difficult. Depends on what was asked and answered |
Step-by-Step: How to Appeal a Rejected Health Insurance Claim
Step 1: Get the rejection in writing, with the reason code
Ask the hospital or insurer for the written rejection and the specific reason. “Rejected” on its own isn’t enough to work with.
Step 2: Read your policy’s Table of Benefits and exclusions
Check whether the treatment is a covered benefit, which limits and co-pays apply, and whether pre-approval was required.
Step 3: Gather the evidence
- Treating doctor’s detailed medical report: symptoms, duration, examinations, test results, treatment tried so far, and why this treatment is needed now
- Investigation reports (MRI, blood tests)
- Your policy schedule and membership card
- Continuity letter, if a waiting period was applied
- Receipts and invoices, for reimbursement claims
Step 4: Submit a formal reconsideration or appeal
- Pre-approval: ask the hospital’s insurance desk to resubmit with the new evidence. Ask the doctor to write a clear medical-necessity letter.
- Reimbursement: submit a written appeal to the insurer (email or app), attaching all documents. Keep your reference number.
Sample wording:
“I request reconsideration of claim/pre-approval reference [number], rejected on [date] for [reason]. Attached are the treating physician’s report detailing [symptoms, duration, failed conservative treatment], investigation reports, and my policy schedule showing this benefit is covered under [section]. Please review and confirm your decision in writing.”
Step 5: Escalate within the insurer
If the first appeal fails, ask for the complaints unit (UAE insurers must have one) and file a formal complaint. Note the date. It starts the clock for Sanadak.
Step 6: Escalate to the regulator or Sanadak
See the next section.
Escalation Options: DHA, DoH, CBUAE and Sanadak
| Route | When to use it | How |
|---|---|---|
| Your insurer’s complaints unit | Always first | Written complaint with reference number |
| Dubai Health Authority (DHA) | Health insurance disputes for Dubai-regulated policies | Through DHA’s official complaint channels |
| Department of Health – Abu Dhabi (DoH) | Health insurance disputes for Abu Dhabi-regulated policies | Through DoH’s official complaint channels |
| Sanadak | Unresolved complaints against CBUAE-licensed insurers, after 30 days | sanadak.gov.ae, UAE Pass login |
How Sanadak works
Sanadak is the UAE’s independent ombudsman unit for complaints against banks and insurers licensed by the Central Bank of the UAE. You can approach Sanadak if:
- You complained to the insurer first and waited 30 calendar days, or the insurer’s response was unsatisfactory
- There is no court case on the same matter
- The issue falls under CBUAE’s jurisdiction
How to file:
- Go to sanadak.gov.ae and select “Submit a complaint”
- Choose “Insurance company” and complete the eligibility form
- Sign in with UAE Pass
- Upload your policy, the rejection letter, your complaint to the insurer and its response
- Accept the terms and submit
Contact: 800 SANADAK (800 72 623 25) · info@sanadak.gov.ae
Emergencies: Special Rules
If you received emergency treatment:
- Pre-approval generally isn’t required before emergency care, but the hospital must notify the insurer promptly.
- Out-of-network emergencies are commonly covered, sometimes at in-network rates.
- If an emergency claim is rejected for “no pre-approval” or “out-of-network”, appeal with the emergency department report showing the emergency nature of the visit.
How to Prevent Rejections in the First Place
- Always ask whether pre-approval is needed for scans, procedures and admissions.
- Stay in network and check the network tier on your card.
- Ask your doctor to document thoroughly: symptoms, duration, previous treatment.
- Declare all pre-existing conditions at application. See Pre-Existing Conditions and UAE Health Insurance.
- Keep continuity letters when switching insurers.
- Submit reimbursement claims quickly, within the policy deadline (often 60–90 days).
How to Write a Strong Medical-Necessity Letter
For “not medically necessary” rejections, the treating doctor’s letter usually decides the appeal. Ask your doctor to include:
- Diagnosis with the clinical code where possible
- Symptoms and duration, for example “right knee pain and locking for 10 weeks”
- Examination findings and test results (MRI, blood tests)
- Conservative treatment already tried, with dates and outcomes (physiotherapy, medication, rest)
- Why this treatment is needed now, and the risks of delay
- Alternatives considered and why they aren’t suitable
- Reference to accepted clinical guidelines where relevant
A letter that answers the insurer’s specific reason succeeds far more often than a generic “patient requires surgery”.
Real Examples: What Worked and What Didn’t
| Situation | Rejection reason | Outcome | Why |
|---|---|---|---|
| MRI for back pain after 2 weeks | Not medically necessary | Upheld | Guidelines generally expect a period of conservative care first |
| MRI after 8 weeks of failed physiotherapy | Initially rejected | Approved on appeal | Physio notes showed failed conservative treatment |
| Out-of-network ER visit for chest pain | Out of network | Paid on appeal | Emergency nature documented by ER report |
| Dental implant on a plan without dental | Excluded benefit | Upheld | Clear exclusion in the Table of Benefits |
| Diabetes admission 3 months into a new plan | Waiting period | Paid on appeal | Continuity letter showed 4 years of prior UAE cover |
| Hypertension-related stroke; condition not declared | Non-disclosure | Upheld | Pharmacy records showed prior treatment |
Composite examples for illustration.
Group Policy Members: Use Your HR Team
If you’re on an employer’s group plan, HR and the company’s broker have more influence than you might think:
- The broker handles the relationship with the insurer and can escalate cases.
- Large employers often have an account manager at the insurer.
- HR can check whether the rejection is consistent with the group’s specific Table of Benefits, which may differ from standard plans.
Send HR a short summary: claim reference, rejection reason, what you’ve already submitted, and what you’re asking for.
Keeping a Claims File: A Simple Habit That Saves Money
Keep a digital folder for each family member with:
- Policy schedule and Table of Benefits (current year)
- Membership card (both sides)
- Continuity letters from previous insurers
- Every pre-approval request and response
- Receipts and invoices for reimbursement claims
- Correspondence with the insurer (screenshots of app messages count)
When a rejection comes, you’ll have everything ready within minutes rather than days, and appeals are time-sensitive.
Reimbursement Claims: Getting Paid Back Faster
If you paid upfront, for example at an out-of-network clinic in an emergency or while travelling, reimbursement claims are often delayed by avoidable problems. To get paid faster:
- Submit within the deadline in your policy, often 60–90 days from treatment.
- Use itemised invoices, not just a card receipt. The insurer needs each service listed.
- Attach the medical report with the diagnosis and treatment given.
- Include prescriptions alongside pharmacy receipts.
- For treatment abroad, provide invoices in English (or with a translation) and state the currency.
- Check your IBAN is correct on the claim form. A wrong account number is one of the most common causes of delay.
- Track the claim in the insurer’s app and follow up if there’s no update after 15 working days.
Know Your Timelines
| Stage | Typical timeframe |
|---|---|
| Pre-approval decision (routine) | Hours to 2 working days |
| Pre-approval resubmission with new evidence | 1 – 3 working days |
| Reimbursement claim processing | Often 15 – 30 days after complete documents |
| Formal complaint to insurer | Response expected before Sanadak escalation; you can escalate after 30 calendar days |
| Sanadak review | Varies by complexity |
Typical market timeframes, not guaranteed. Your policy wording and regulator rules take precedence.
Record the date of every submission. If the insurer asks for more documents, the clock usually restarts from when they receive them, so send everything in one complete package where possible.
A Note on Tone
Keep every appeal factual and polite. Claims reviewers handle hundreds of files. A clear, well-organised appeal that answers the stated rejection reason, attaches the right evidence and asks for a specific outcome is far more likely to succeed than an angry message. Save strong language for the formal complaint stage, if you need it at all.
Checklist: Before You Submit an Appeal
- ☐ Written rejection with specific reason
- ☐ Policy schedule and Table of Benefits reviewed
- ☐ Detailed doctor’s report addressing the rejection reason
- ☐ Investigation reports attached
- ☐ Continuity letter (if a waiting period was applied)
- ☐ Appeal sent in writing with reference number
- ☐ Date of complaint recorded (for Sanadak’s 30-day rule)
Frequently Asked Questions
What should I do if my health insurance claim is rejected in the UAE?
First, get the rejection in writing with the specific reason. Then check your policy’s Table of Benefits, gather a detailed doctor’s report and supporting tests, and submit a written reconsideration to the insurer. If that fails, file a formal complaint with the insurer’s complaints unit, then escalate to DHA, DoH or Sanadak.
How do I appeal a rejected pre-approval in Dubai?
Ask the hospital’s insurance desk to resubmit the pre-approval with more clinical evidence, especially the treating doctor’s report on symptoms, duration, previous treatments and why the procedure is necessary. Many rejections for “insufficient information” or “not medically necessary” are reversed once complete documentation is provided.
What is Sanadak and how does it help with insurance complaints?
Sanadak is the UAE’s independent ombudsman unit for complaints against banks and insurance companies licensed by the Central Bank of the UAE. You can file with Sanadak if you complained to the insurer and waited 30 calendar days without a satisfactory response, and there is no court case on the matter. Complaints are filed online at sanadak.gov.ae using UAE Pass.
How long does an insurer have to respond to a complaint in the UAE?
Before you can escalate to Sanadak, you must have waited 30 calendar days after lodging your complaint with the insurer, unless the insurer has already given a final response. Pre-approval decisions are usually much faster, often within hours to a few days. Keep written records of every submission date.
Can a rejected health insurance claim be reversed?
Yes, often. Rejections based on missing information, coding errors or medical necessity are frequently reversed when complete documentation is submitted. Rejections for excluded benefits, out-of-network non-emergency care or valid waiting periods are harder to overturn. Non-disclosure rejections depend on exactly what was asked on the application.
Does insurance cover emergency treatment without pre-approval in the UAE?
Generally yes. Emergency treatment doesn’t require pre-approval before care, but the hospital must notify the insurer promptly. Out-of-network emergencies are commonly covered. If an emergency claim is rejected, appeal with the emergency department report showing why immediate treatment was needed.
Related Reading
- Pre-Existing Conditions and UAE Health Insurance
- Maternity Insurance in UAE
- Why Did My Health Insurance Premium Increase?
Conclusion
A rejected claim is often the start of a conversation, not the end of it. Find out the exact reason, answer it with the right medical evidence, put everything in writing, and escalate in order: insurer, complaints unit, then DHA, DoH or Sanadak. Most avoidable rejections come from missing information, and that’s the part you can control.
Your next step: if you have a rejected claim now, request the written rejection and your doctor’s detailed report today. If you’d like help preparing the appeal, send me the documents through the inquiry page and I’ll point out the strongest grounds.
Sources
- Sanadak, “Submit a complaint related to a Licensed Financial Institution” and “Complaint Submission Process” (sanadak.gov.ae)
- Gulf News, “How to raise an insurance complaint in the UAE” (30-day rule, filing steps, hotline)
- Central Bank of the UAE, insurance consumer protection framework
The opening scenario is a composite illustration based on typical cases; names and details are fictional.
