Drug Delivery Device

A drug delivery device for administering of a dose of a medicament, the drug delivery device being operable to cooperate with an electronic data logging device, the drug delivery device comprising:

• a housing configured to accommodate the medicament and configured to receive and/or mechanically engage with the electronic data logging device;
• and
• a first device component and a second device component,
• wherein the first device component is movable relative to the second device component from a first positional state to a second positional state,
• wherein the first device component comprises a first outer surface,
• wherein the second device component comprises a second outer surface,
• wherein at least one of the first outer surface and the second outer surface comprises a first code portion of a pairing code for establishing a communication link between the electronic data logging device and an external electronic device, and
• wherein the pairing code is visually identifiable from outside the drug delivery device only when the first device component is in the second positional state relative to the second device component.

A method of pairing an electronic data logging device of a drug delivery device with an external electronic device, wherein the drug delivery device comprises a first device component movable relative to a second device component, wherein the first device component comprises a first outer surface, wherein the second device component comprises a second outer surface, wherein at least one of the first outer surface and the second outer surface comprises a first code portion of a pairing code, the pairing code being visually identifiable from outside the drug delivery device only when the first device component is in a second positional state relative to the second device component, and wherein the method comprises:

• setting at least one of the external electronic device and the data logging device into a pairing mode;
• moving the first device component relative to the second device component from a first positional state, in which the pairing code is non-discernible, into the second positional state;
• visually identifying the pairing code from outside the drug delivery device;
• and
• using the pairing code to establish a communication link between the external electronic device and the data logging device.