For real, can somebody help me with my real P. E. quiz?

According to icd-10 official guidelines for coding and reporting section i.c.13.d. osteoporosis is a systematic condition, meaning that all bones of the musculoskeletal system are affected. therefore, site is not a component of the codes and you should use codes under which category?

Taking a foil acid supplement during childhood can prevent illness

Knowing if a patient has tuberculosis, hepatitis b, or aids is important because a. serious illnesses should be avoided. b. they could compromise the vital sign readings. c. cross-infection may occur. d. they can't be cured.