When a patient has a blood test for HIV that is inconclusive, what ICD-10-CM code is assigned a. Z21 b. R75 c. B20 d. Z11.4 - b. R75 What does MRSA stand for a. Methicillin Resistant Staphylococcus Aureus b. Methicillin Resistant Streptococcus Aureus c. Moderate Resistance Susceptible Aureus d. Mild Resistance Streptococcus Aureus - a. Methicillin Resistant Staphylococcus Aureus What does the fourth character in diabetes mellitus diabetes codes indicate? a. The condition as controlled or uncontrolled b. Any complication associated with diabetes c. Type of diabetes (type 1, or Type 2, secondary) d. If the diabetes is primary or secondary diabetes - b. Any complication associated with diabetes When do you code acute respiratory failure as a secondary diagnosis a. the patient has any other condition at the same time b. When it is determined to be the cause of the shortness of breath