Which of the following conditions is necessary to report to the proper authorities?

Cirrhosis is a liver condition primarily caused by chronic alcohol consumption, hepatitis infections, or fatty liver disease. While it is a serious health issue, it is not classified as a communicable disease and therefore does not require reporting to health authorities.

Emphysema is a chronic respiratory disease commonly associated with long-term smoking or exposure to lung irritants. Like cirrhosis, it is not an infectious disease that can be transmitted from person to person, and thus does not necessitate reporting to public health officials.

Herpes zoster, commonly known as shingles, is caused by the reactivation of the varicella-zoster virus. While it can be painful and affect quality of life, it is not a reportable condition in most jurisdictions as it is not classified as a sexually transmitted infection or a communicable disease requiring public health notification.

Phlebitis is the inflammation of a vein, often due to thrombosis. It can arise from various non-infectious causes and is not categorized as a communicable disease, so it does not require reporting to health authorities.