ICD-10-CM root operations excision and resection are sometimes hard to differentiate. ICD-10-PCS defines excision (B) as cutting out or off, without replacement, a portion of a body part. Resection (T) is almost identical, but involves cutting out or off the entire body part.
Coders and clinicians seem to speak different languages. CDI specialists often serve as the translators between clinicians and coders, so it's important that all three groups work together.
You all know that I have been unhappy with some code definitions in ICD-9 and have ucceeded in getting some changes made in ICD-9 and ICD-10-CM code sets.