A 58-year-old man tested positive for MRSA on routine nasal culture on admission to the hospital. He did not have an infection. How should this be coded (list the code or codes) ?
a. Z11.8 Encounter for screening for other infectious and parasitic diseases
b. Z22.32 Carrier or suspected carrier of methicillin resistant Staphylococcus aureus
c. Z29.1 Encounter for prophylactic vaccination against other diseases
d. Z38.00 Newborn affected by maternal infectious and parasitic diseases, not elsewhere classified