Final answer:
The appropriate ICD-10-CM code assignment for the patient is K70.10.
Step-by-step explanation:
The appropriate ICD-10-CM code assignment for the patient with a final diagnosis of hepatitis due to alcoholism is K70.10, which represents alcoholic hepatitis. The additional code F10.20 is not necessary because the patient already has a diagnosis of hepatitis due to alcoholism, and therefore, the additional code for alcohol abuse is not needed. Therefore, the correct answer is D) K70.10.