These are two separate discussion posts. Please write them separately. Must be a

These are two separate discussion posts. Please write them separately. Must be at least 150 words for each.
Discussion Post #1
The 73-year-old patient was admitted for osteoarthritis of both hips. A cemented acetabular surface, hip replacements.
What is the root operation for the case?
What is the ICD-10-PCS code for this case?
Explain your reasoning for the code selections.
Discussion Post #2
A
patient received CT imaging of the left leg with contrast at the Vista
Imaging Center where the radiologists own the equipment and read and
interpret their own studies. What is the appropriate CPT code and
modifier (if applicable)?