Is having a heart cathetor test considered pre existing condition?

Tests, of any kind, are not included in the definition of preexisting condition. You have to be given a definitive diagnosis from that testing in order to have a preexisting condition. If by having a heart cath test, it was determined that you did not need to have one placed, then you do not have a preexisting condition. For example, you may have an MRI/CAT Scan and then a PET Scan to determine if you have cancer, but if they find you do not have cancer, then you are not diagnosed with a condition, therefore cannot considered preexisting. I should add that, generally if a Dr. wants to evaluate for a heart cath, then you currently have or have had issues with your heart in the past. This may be something like a high percentage blockage, irregular heart beat, thickening of the lining around your heart, etc. This would be considered a preexisting condition and future insurance companies may determine that any intervention needed on your heart would be preexisting. However, insurance companies usually have a preexisting time frame (generally 12 or 24 months) in which a condition is no longer consider preexisting. For example, if you were diagnosed with a heart condition 13 months ago and the insurance company you are planning on joining policy is a 12-month limit on pre-existing conditions, then you are in the clear and the preexisting condition clause does not apply to you.