Opioid induced chronic pain syndrome (OICP): This is a new pain-specific diagnostic term proposed for the clinical phenomenology (persistent worsening of pain, function, and medical stability whether LTOT is continued or deprescribed) associated with CPOD. Such a pain specific terminology was proposed with the intent of avoiding the confounding with opioid addiction, OUD, ICD-10 opioid dependence, adaptive LTOT dependence, and OIH. The diagnostic terminologies of both CPOD and OICP needs further validation.