How do you bill for inhalation of nitrous oxide (D9230) medical?February 25, 2015 by AdminAsk the CoderHow do you bill for inhalation of nitrous oxide (D9230) medical? All questionsAnswered questionsUnanswered questions > « Back to Previous Page Answer Question ▲0 ▼ ♥ 0 Marked as spamAsked on February 25, 2015359 viewsFollowUnfollow ▲-1 ▼✔ Private answerNitrous oxide is billed using the same "D" code as it is considered a HCPCS code in Medicine.Marked as spamAnswered on February 26, 2015 « Back to Previous Page Post your AnswerAttach YouTube/Vimeo clip putting the URL in brackets: [https://youtu.be/Zkdf3kaso] Notify me of follow