Emergency codes are standardized phrases or numbers used in hospitals and other healthcare facilities to quickly communicate urgent situations. These codes help staff respond efficiently to emergencies without alarming patients or visitors. For example, a code blue typically indicates a cardiac arrest, prompting immediate medical assistance. Different facilities may use varying codes, but many follow similar systems to ensure consistency. Training staff on these codes is essential for effective emergency response. Additionally, some hospitals may use color codes, such as code red for fire or code yellow for a missing patient, to address specific situations swiftly.