Limited coverage of skin cancers Skin cancer is the most commonly diagnosed form of cancer. The primary categories of skin cancer are
basal-cell carcinoma (BCC),
squamous-cell carcinoma (SCC), and
melanoma. The first two, collectively known as non-melanoma skin cancers (NMSC), are highly unlikely to metastasize and comprise the majority of skin cancer diagnoses. Many cancer insurance plans do not offer benefits for policyholders diagnosed with these
non-melanoma skin cancers, or a large share of cases that are frequently called cancer. Other plans that provide both initial-diagnosis payments and recurring payments may not provide a lump-sum benefit for the initial diagnosis of a non-melanoma skin cancer.
Limited range of covered illnesses Some cancer insurance plans cover only those costs associated with cancer itself. Under these plans, costs associated with any non-cancer illness that was directly or indirectly induced or complicated by cancer are not covered. For example, even though lung cancer increases the risk of pneumonia, medical costs related to treatment of pneumonia that occurs after a cancer diagnosis would not be covered by a cancer insurance plan. Other cancer insurance plans may only cover costs that arise after a patient has developed cancer properly. Policyholders do not receive benefits if they are detected with pre-malignant symptoms or other conditions that show the
potential for malignancy. Under these plans, cancer treatment given to a patient after they have left a hospital, including radiation and chemotherapy, may not be covered.
Pre-existing conditions While cancer insurance plans have varying definitions of pre-existing conditions, they generally agree in that they impose restrictions on individuals who have already been diagnosed with cancer at the time of enrollment. Some plans may not provide benefits for costs incurred due to a
pre-existing condition during the first twelve months of coverage. Other plans may render patients completely ineligible if they have ever been diagnosed with certain forms of cancer, AIDS, or HIV.
Limitations on double coverage Cancer insurance is a form of supplemental insurance that is meant to cover gaps in a patient's primary insurance plans, but in some instances, primary insurance plans provide cancer coverage benefits that overlap with those of the supplemental cancer insurance plan. While some cancer insurance plans will pay benefits no matter what the primary insurance plan pays, some primary insurance plans may include a coordination of benefits clause that prohibits double payment. Other cancer insurance plans may stipulate that patients cannot receive double benefits.
Coverage waiting periods Some cancer insurance plans have provisions that prevent the policyholder from receiving benefits during a period after initial enrollment; this length is frequently thirty days. Some plans stipulate that if a policyholder is diagnosed with cancer in the first thirty days of coverage, their benefits are significantly reduced and coverage will subsequently be terminated. ==Concerns regarding coverage==