From the ninth week until birth, the developing child is referred to as a(n) __________

What is the cause of conductive deafness?

A) Any condition that prevents voice or vibration from being transmitted to the brain from the outer ear due to nerve damage B) A condition that prevents sound from traveling from the inner to the outer ear C) A decrease in the sensory threshold voltage of the ear D) Any condition that prevents sound from being transmitted from the external ear to the middle or inner ear

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.