Maybe. If it is mild, it would not be a problem. If moderate you would need to ask your cardiologist specifically. If severe, no.
Depends on the sever. For mild to moderate stenosis, probably little to no risk. For severe disease, would check with your heart doctor.
Not a good idea. Aortic stenosis can have syncope (fainting), dyspnea (difficulty breathing), and angina. It is instructed to avoid strenuous activity in severe aortic stenosis, even if there are no symptoms. So roller coasters are not a good option with this condition, especially if it is severe.
Depends. It depends on how severe the aortic stenosis is. If mild, there should be no problem. If severe, the stress could cause strain on the heart and lead to serious problems. Usually, if it is that severe, the condition is treated. One should directly consult one's cardiologist to answer this question.
Aortic stenosis. Nitroglycerin is dangerous to use with severe or critical aortic stenosis as it can cause a drop in blood pressure for which the heart cannot compensate due to the obstruction to outflow of the heart through the obstructed aortic valve.
424.1. The closest I have been able to find is 424.1, aortic valve disorders. I cannot find a specific code for stenosis.
424.1. There is no specific code for aortic stenosis. There is only a code for aortic valve disease. There is also a code specifically for rheumatic aortic stenosis which is 395.0 finally there is 395.2 which is for rheumatic aortic stenosis and insufficiency.