The GOV.UK website states that if you have a medical condition that could affect your driving you are required to tell DVLA.
The form required to notify the DVLA of a medical condition has been updated. The list of conditions are listed on the GOV.UK website. The H1 form is required to report congenital heart conditions.
You can be fined up to £1,000 if you don’t tell DVLA. Read more here: https://www.gov.uk/congenital-heart-disease-and-driving .Driving and Medical Issues 0300 790 6806 8am to 5.30pm.
Car or motorcycle licence
You must tell DVLA if you have congenital heart disease and have symptoms that affect safe driving (for example angina, palpitations, shortness of breath, or symptoms related to uncontrolled hypertension, heart failure or heart valve disease).
Bus, coach or lorry licence
You must tell DVLA if you have congenital heart disease.
Fill in form VOCH1 and send it to DVLA. The address is on the form.
Notice: The source of this information is from the DVLA website.