ICD10 will bring a lot of welcome changes and correct many of teh issues and shortcomings with ICD9. One praticular source of confusion with ICD9 relaets to the xecludes notes. In ICD9, the excludes notes can mean two thigns: 1. Do not code both of thsee codes together under any ... To make up my mind as to how I was going to treat hte excludes note, I checked the ICD10 codes fro pulmonary hypertension, and the type of excludes note there is an excludes 1 note. ...