Many. patients have a polytrauma, injuries to other parts of the body in addition to the head and brain. Trauma victims often develop hypermetabolism or an increased metabolic rate, causing muscle wasting and the starvation of other tissues.
1 Normal: Less than 120 systolic and less than 80 diastolic. 2  Pre-hypertension: 120-139 systolic or 80-89 diastolic. 3  Hypertension: 140 or higher systolic or 90 or higher diastolic.  Hypertensive Crisis: higher than 180 or higher than 110 diastolic.
Therefore, one elevated blood pressure reading cannot be diagnosed as hypertension. ICD-9-CM code 796.2 is assigned for elevated blood pressure without a diagnosis of hypertension and for transient or borderline hypertension. Once hypertension is established by a physician, a code from category 401 is assigned, with a fourth digit required: 0 for malignant, 1 for benign, and 9 for unspecified. Do not assign a code for benign or malignant hypertension unless it is specifically documented by a physician.