A hose clamp identification marker for selectively identifying contents of a flexible hose. The hose clamp identification marker may be implemented in connection with a hose clamp and may comprise an open channel configured to straddle a hose. In this manner, the hose clamp identification marker of the present invention may be introduced to and removed from the hose clamp without disrupting continuity of treatment or requiring disassembly of the connection between the hose and a delivery device, such as a hollow needle.