How Pre-Existing Diseases Impact Your Health Insurance
Insurers consider policy applicants with pre-existing conditions high-risk since they are viewed as more likely to file claims. This comprehensive guide examines how pre-existing conditions affect insurance in terms of premiums, waiting periods, claims and more.
Published Date - 5 June 2025, 01:00 PM
New Delhi: Pre-existing diseases refer to any illness, disorder, injury or health issue an individual already has before applying for a new health insurance policy. These can encompass minor ongoing ailments, major critical conditions, chronic disorders and past accidents that may require further treatment.
Insurers consider policy applicants with pre-existing conditions high-risk since they are viewed as more likely to file claims. This comprehensive guide examines how pre-existing conditions affect insurance in terms of premiums, waiting periods, claims and more.
Understanding Pre-Existing Diseases
Pre-existing medical conditions include any health issues diagnosed before purchasing health insurance. As per insurers’ protocols, the pre-existing disease purpose also extends to:
- Undiagnosed conditions where symptoms were clearly evident and can be medically validated.
- Ailments where a healthcare provider previously recommended medical advice or treatment.
- Illnesses that the insured individual was potentially aware of through self-diagnosis.
In addition to acute medical events, even chronic disorders like arthritis, gastric ulcers, thyroid diseases, autoimmune conditions, etc., diagnosed earlier, fall under the pre-existing category. Any mental health illness identified before the insurance application also qualifies as pre-existing, as per industry norms. Though managing health insurance with pre-existing diseases can be challenging, being an informed policy buyer and researching reputable providers like ACKO insurance, known for transparent policies, will help you find adequate coverage.
Effects on Health Insurance Coverage
When applying for health insurance in the presence of pre-existing conditions, insurers may perceive the likelihood of higher claims as elevated. After all, chronic and recurring health issues often warrant treatments, regular medical consultations, and medication, leading to increased medical bills over time.
To safeguard against potentially higher claims from pre-existing diseases, insurers are known to utilise protocols such as:
- Loading of premiums: Industry practice involves charging higher premiums to individuals with pre-existing illnesses to buffer for higher anticipated claims.
- Imposing waiting periods: Health plans often define compulsory durations post-purchase during which policyholders cannot claim expenses related to pre-diagnosed conditions. This allows insurers to manage risks during initial policy years.
- Selective exclusions: Underwriting guidelines allow insurers to permanently exclude coverage for expenses related to certain declared health events, depending on their severity or chronicity.
Types of Waiting Periods
There are typically three primary waiting periods linked to pre-existing diseases:
- Initial Waiting Period: The first 30-90 days after purchasing a policy are when claims cannot be filed, even for accidents or infections. This applies to all policyholders regardless of health status.
- Pre-Existing Conditions Waiting Period: The exclusive period spanning 2-3 years before claims related to any pre-existing illnesses become admissible, offering protection only for new diseases that emerge after policy issuance.
- Condition-Specific Waiting Periods: Extended waiting durations are assigned specially for certain medical conditions, such as cardiac disorders, cancers, or kidney problems, which further delay the admissibility of claims related to those illnesses.
Factors Impacting Waiting Periods
Industry data suggests that insurers’ pre-existing condition waiting periods can vary depending on applicant demographics, such as age, location, and policy type purchased. The type of pre-existing illness and insurers’ internal protocols can also impact durations.
Some insurers are known to offer shorter waiting periods compared to the industry averages cited previously. Choosing such policies can allow faster activation of coverage for pre-diagnosed diseases. However, higher premiums may be levied due to lower tenure.
Effects on Policy Terms
Some of the pre-existing conditions can shape multiple health insurance policy terms:
- Premium Loading: Insurers may charge enhanced premiums to individuals with pre-diagnosed illnesses based on their profiles.
- Prolonged Waiting Periods: Extended waiting durations before claims acceptance for disclosed health conditions.
- Sum Insured Limits: Constrictions on coverage amounts for managing specific illnesses may apply.
- Mandatory Medical Underwriting: Pre-policy medical screenings aimed at assessing eligibility and coverage terms based on health disclosure.
- Condition Exclusions: Critical illnesses may not be covered per the underwriting guidelines and protocols.
The Bottom Line
Carefully evaluate how your pre-existing condition will impact policy terms before purchasing coverage. Disclosing your full medical history accurately is also critical to avoid claim disputes later on technical grounds.