Since your health insurance premiums are on your W-2 you should not have code AD for box 17 on your K-1 and you should not enter that on your K-1 entry in TurboTax.
To report your self-employed health insurance for the deduction you need to review that you have entered your box 14 information for the health insurance amount included in box 1 of your W-2 if it is reported.
You also need to ensure you have marked the box "I personally paid health insurance and/or long-term care insurance premiums for myself and my family and this S corporation paid me wages." on the Other Situations screen toward the end of the K-1 entry screens. Also, be sure you have entered the premium amount for insurance payments not reported on 1095-A on the Self-Employed Health Insurance screen.
Finally, you need to ensure you have marked the box "I'm self-employed and bought a Marketplace plan" on the Let us know if these situations apply to you screen toward the end of the 1095-A entry.
To find these forms in TurboTax Online you can reference W-2, Where do I enter a K-1 that I received?, and 1095-A.
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@mr24y
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