A father and son were both admitted to a hospital in Mumbai with confirmed falciparum malaria. The father's blood work showed Plasmodium falciparum with thrombocytopenia (dangerously low platelets). He presented with high-grade fever reaching 104°F, rigors, headache, vomiting, and weakness. He was admitted, put on intravenous Artesunate (the WHO-recommended first-line IV treatment for falciparum malaria), IV antibiotics, IV fluids, and monitoring over three days.
The family had purchased a new Care Supreme health policy just three months prior. The 30-day initial waiting period had passed. The policy was active and valid.
Both cashless claims were rejected — not registered, in insurer language — on a single ground: "All vitals within normal limits — could have been managed on OPD basis."
The insurer also cited: "Admission primarily for investigation and evaluation (Permanent Exclusion Code EXCL04)."
The position that falciparum malaria with thrombocytopenia can be "managed on an OPD basis" contradicts every applicable clinical guideline.
WHO guidelines are unambiguous: confirmed Plasmodium falciparum infection requires inpatient IV Artesunate therapy. Oral treatment is reserved for uncomplicated falciparum malaria in stable patients; thrombocytopenia is a complication that moves the case into the "severe" category.
India's NVBDCP (National Vector Borne Disease Control Programme) guidelines echo this. Severe or complicated falciparum malaria — defined to include thrombocytopenia, fever with prostration, and related complications — mandates hospitalisation and parenteral therapy.
The "vitals within normal limits" claim is directly contradicted by the documented facts. The father's temperature was 104°F at admission. His BP was 90/130mmHg. Normal body temperature is 37°C (98.6°F); 104°F is nearly 40°C — a high fever. These are not normal vitals. The insurer's claims team either did not review the medical records or disregarded them.
The "admission for investigation" exclusion does not apply. The patient was not admitted to run tests. He was admitted because he had a confirmed, active, parasitic infection requiring IV treatment. Investigations were part of managing an illness already in progress — not the purpose of admission.
The insurer issued a "non-registration" letter — a formal refusal to even register the cashless claim. This sounds final. It isn't.
The Care Supreme policy allows reimbursement claims even after a cashless non-registration. More importantly, a non-registration for the cashless facility is different from a finding that the underlying claim is not payable. The insurer's stated grounds — vitals normal, OPD-manageable — are factual allegations that can be refuted with clinical evidence.
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After the non-registration, the family obtained a detailed letter from the treating doctor. The letter confirmed:
This letter, combined with the documented blood smear/rapid antigen test confirming P. falciparum, provides the core of the reimbursement claim challenge.
File reimbursement claims for both patients with the complete clinical package:
File a formal grievance with the insurer citing: (a) the non-registration grounds are medically incorrect; (b) the OPD-manageable assertion contradicts WHO and national guidelines; and (c) the "vitals normal" claim contradicts the documented clinical findings.
Escalate to the Insurance Ombudsman (Mumbai) if the reimbursement claim is also denied.
The "OPD-manageable" rejection is one of the most widely misused grounds in health insurance claims processing. It was designed to catch legitimate fraud — short hospitalisations for conditions that genuinely didn't need admission. But it is applied far too broadly.
We have seen it invoked for falciparum malaria, for post-surgical monitoring, for acute infections requiring IV antibiotics, and for conditions that any clinician would consider to require inpatient management. The insurer's claims reviewer — operating from a desk, reviewing a summary — overrules the treating physician's clinical judgment.
This is not a valid way to process claims. Clinical decisions about admission necessity should be challenged only where there is clear evidence of fraud or gross clinical inaccuracy. A confirmed falciparum malaria case with documented thrombocytopenia and 104°F fever does not meet that threshold.
Obtain a detailed medical necessity letter from your treating doctor before you leave the hospital. Specifically request that it address whether your condition required inpatient admission and could not have been managed as an outpatient.
Keep all investigation reports. The blood smear or antigen test confirming the diagnosis, the platelet count reports, the temperature chart — these are the evidence that refutes a "vitals normal" rejection.
Know the clinical guidelines for your condition. If your condition has a documented standard of care that requires inpatient treatment, cite that standard in your reimbursement claim. The insurer's claims team is not above clinical evidence.
A non-registration is not a final rejection. Push through to the reimbursement claim.
Case details have been anonymised. This article is based on documents reviewed as part of FairClaims' 2026 case intake. It is for informational purposes only and does not constitute legal advice.
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