Percentage of patients 18 years of age and older who are prescribed opioids and have a letter or other communication sent to another clinician who is prescribing benzodiazepines. This measure is reported by the clinician who prescribes opioids to a patient already taking benzodiazepines. Communication must occur at the time of initial opioid prescribing and following any gaps in prescribing of greater than 6 months, or once per reporting year for patients on continuous chronic opioid and benzodiazepine therapy.