Your primary dx should be the sign/symptom or diagnosis that drove the encounter. This may or may not be the presenting problem. (ie pt presents with pharyngitis, but due to pain has not been drinking fluids. Labs indicate dehydration, for which an IV of fluids is started and he/she is admitted overnight.
Neurosyphilis is considered infectious but is not transmitted from person to person. Generally, a disease like this is caused by an infectious agent and not spread between people. Neurosyphilis, although infectious, is not a genetic disease. It is not caused by a defective or abnormal gene.
The definition of contagious depends on whether the rash itself can be spread or the infection that causes the rash can be spread, so some experts may not agree with the designations above. For example, in some cases, the rash is contagious in that someone can get the rash from another person with the rash.In other cases, a person with a rash may be at risk of spreading the infection that caused the rash (which may not necessarily cause a rash in the person who gets infected).here are contagious and noncontagious skin rashes. To make this broad topic more manageable, the following is a list of general categories of rashes that are considered noncontagious: 1  Seborrheic dermatitis. 2  Atopic dermatitis. 3  Contact dermatitis. 4  Stasis dermatitis. 5  Psoriasis. 6  Nummular eczema.