Sinusitis Wikipedia Sinusitis Animation Youtube High blood pressure (hypertension) is when your blood pressure is 140/90 mmhg most of the time, occurs when the arterioles narrow, causing the blood to exert excessive pressure against the vessel wall and the heart must work harder to maintain the higher pressure. icd 9 codes for hypertension classificification by type is as follows:. See full list on mayoclinic. org. Resistant hypertension has been designated as. 997. 91 in hypertension icd 9 the icd-9 codes. unfortunately, there is no designation for ''resistant hypertension'' in the icd-10. Dua may 2016 sinusitis anatomy, symptoms, causes and treatment. this video is available for licensing . Icd-9-cm 401. 9 is a billable medical code that can be used to indicate a penaksiran on a reimbursement claim, however, 401. 9 should only be used for claims with a date of service on or before september 30, 2015. for claims with a date of service on or after october 1, 2015,...