A system is described for managing data and information in a healthcare environment, such as a hospital. A handheld code scanner reads codes and either accepts data, or performs instructions based on the read code. The code scanner wirelessly transmits the codes or data to a central server which acts on the read code to carry out necessary functions. The system is useful for tracking patient data, such as for delivery of medicine. In addition, since the system can carry out instructions, it is useful for allowing healthcare workers to quickly and conveniently perform their duties without the necessity of sitting at a computer terminal.