What does opioid dependence NOS mean?

Opioids are drugs that work in the body the way opium does. Some are made directly from opium (for example, morphine, and codeine), while others are man-made but similar chemically to opium (for example, the painkillers oxycodone, hydrocodone, and fentanyl, better known by such brand names as OxyContin®, Vicodin®, Percocet® and Actiq®*). The illegal drug heroin is also an opioid.

To know if you are an Opiod Dependent you can check the related link.