Depending on what type of health insurance form you received, you may or may not need to file an amended return.
If you have a 1095-A:
https://ttlc.intuit.com/replies/4268797
If you have a 1095-B, a form titled Health Coverage, the IRS does NOT need any details from this form. You can keep any 1095-B forms you get from your health insurance company or the government agency that sponsors your plan for your records.
If you have a 1095-C, a form titled Employer-Provided Health Insurance Offer and Coverage the IRS does NOT need any details from this form. You can keep any 1095-C forms you get from your employer for your records.
If you have form 1095-A and need to file an amended return, see below. Please note that the IRS recommends waiting until the original return is completely processed (refund received) before filing an amendment.
https://ttlc.intuit.com/replies/3288565
