To correctly code a situation where the encounter is for circumstances other than a disease or injury you would use a(n):

Z code

To correctly code a situation where the encounter is for circumstances other than a disease or injury you would use a z code .

Z codes are an important group of codes created in the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) for stating conditions that affects health status and contact with health services. Z codes are assigned as the initial diagnosis in certain situations such as to show the birth status of a new child or to indicate that an individual is attended to for the only purpose of special therapy, such as radiation therapy.

i think a) betsy can donate only blood to mark is correct because, mark and betsy have the same blood type. whereas nobody else has b+ blood so betsy can't donate to them.

hydrogen is a compound or a single element and a element is a pure substence that cannot be separated into simpler subtances

clorine is a compound its a chemical substance that forms when two or more different elements combine

so both hydrogen and clorine are compounds