A system for diagnostic testing may include a meter for performing a diagnostic test on a sample applied to a test media, the meter having a housing and an interface for receiving a signal representing coding information, and a container configured to contain test media compatible with the meter, the container having a coding element associated therewith. Additionally, the system may provide a mechanisms for removing the meter from an interconnected test container and reattaching it to a new container using on-container coding methods that can recalibrate the meter for the new container of test strips. The system may further provide a sampling device, such as a lancet, operably connected to the container such that that a user may use the sampling device to obtain a sample without disconnecting the sampling device from the container. In addition, the system may further provide a refillable test strip container which includes a foil pouch of test strips with a desiccant pill used to refill test strip container when empty.