Is hyperthyroidism a pre existing condition?

Hyperthyroidism can be considered a pre-existing condition when applying for health insurance. Insurance companies can use pre-existing conditions to decline coverage or charge a higher premium. Some insurance policies may have a waiting period for coverage of pre-existing conditions, or may require additional underwriting or medical exams. However, it is essential to check the specific terms and conditions of the insurance policy to determine the coverage for pre-existing conditions.