Which of the following is the path all occupants travel in one direction before reaching a point where they may choose between two separate, distinct paths?

During spirometry, the patient must be able to exhale for how long?

a. 3 seconds b. 60 seconds c. 6 seconds d. 10 seconds

The category for congenital-iodine deficiency syndrome has an instructional note that states:

A) code first (T36 to T65 ) to identify drug or chemical. B) use additional code (F70 to F79 ) to identify associated mental retardation. C) code first any associated mental retardation (F70 to F79). D) use additional code for any iodine supplementation.