Our cardiologist recently began using this in place of IVUS during caths. I have not been able to find any guidance on OCT not related to ophthalmology. Doc states it is similar to IVUS but I'm not sure if it is close enough to use 92978. The ICD-9 procedure code 38.24 crosses to 92978/92978/93799. I'm leaning towards the unlisted code but would like to avoid that if possible. Does anyone have experience billing this with cardiac caths?