One embodiment provides a method, including: receiving, at a passive sensor of a wearable identification device associated with a patient within a healthcare enterprise from a receiver of a patient status system and corresponding to a predetermined location within the healthcare enterprise, a request signal when the wearable identification device is detected at the predetermined location; deriving power for the passive sensor from the request signal and not from power circuitry within the wearable device; generating, at the passive sensor using the derived power, a transmission from the request signal, wherein the transmission includes identifying information associated with the wristband; and transmitting, from the passive sensor, the transmission to the receiver, wherein the transmission is utilized to update a status of the patient within the patient status system based upon detection of the passive sensor at the predetermined location. Other aspects are described and claimed.