What is the outer protective layer of the eyeball known as?

John Bean piston-type high pressure pumps that were common on fire apparatus in the 1960s and 1970s were capable of developing discharge pressures of up to _____ psi

A. 300 B. 500 C. 800 D. 1,000

In the ICD-10-CM tabular list, a manifestation code usually has in its title __________ , which indicates that the manifestation code is a component of the etiology/manifestation coding convention

a. code first underlying disease b. in diseases classifiable elsewhere c. other and other specified codes d. use additional code