An extension is which character of an ICD-10 code?

What kind of medical services are annual physical examinations and routine screening procedures?

A. covered B. preventive C. surgical D. noncovered

Which of the following oxidase-positive, gram-negative diplococcus relies on its capsule to escape the host’s immune system?

A) Butyrate esterase positive
B) Glucose and maltose positive
C) Glucose, maltose, and lactose positive
D) Glucose positive