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.
Is only TB of lungs contagious through breathing or TB in other parts of the body is contagious too. Answer Wiki. Only pulmonary tuberculosis is contagious that too when it's in active stage. Latent TB, i.e. when you have a TB infection with bacteria there in your body but in an inactive state with no symptoms, isn't contagious.