Kentucky Subscriber
Answer: Your advice is correct because the National Correct Coding Initiative guidelines do restrict practices from reporting conscious sedation (99141-99142) with any bronchoscopy codes (31615-31656, except 31630, 31631, 31640, and 31641, which require general anesthesia).
This rule applies only to Medicare guidelines, so it is possible that other private carriers may allow you to report both procedures when the physician performs them during the same session. As always, check your local carrier's guidelines before you report these codes, bundled or unbundled.