Which is used in computing the C-section rate in addition to the number of C-sections?

Which of the following oxygenation indexes influences the PAO2?

A. O2 B. PO2 C. PIO2 D. PaO2??

For an inpatient, if the diagnosis documented at the time of discharge is qualified as "probable" or "possible," what should the coder do?

A) Code the signs and symptoms. B) Code the condition as though it existed or was established. C) Query the physician and state that a definitive condition must be documented. D) List a V code for the principal diagnosis.