I have seen an increased regarding billing for colonoscopy with direct submucosal injections (45381) as well as EGD with dilation (43249). I am wondering what is the industry standard on billing these procedures combination. Does anybody know how can I get a percentage of colonoscopies billed with injection or what is the percentage of EGD bill with dilation.

I noticed by reading documentation that some physicians find a mild Schatzki ring and leave it alone unless the patient complaints of dysphagia but others will dilate every Schatzki ring they see.
I am concern some physician are missing a coding opportunity or they could be providing services that are not entirely necessary.

Any thoughts