1 H40.159 is a billable ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. 2  Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes. 3  This is the American ICD-10-CM version of H40.159.
So Percent purity is the ratio of the mass of the pure substance to the mass of the impure sample, expressed as a percentage. This is very similar to the percent yield, and to calculate percent purity, we use g pure X 100% g impure Let's try an example. 1.00g Fe ore contains 0.6g Fe metal. What is the percent purity? 0.6/1.0 X 100% = 60 %
10-karat (10K) gold has only 41.7% pure gold in it and is the lowest purity that is still considered gold. Its content is 10 parts gold and 14 parts other metal alloys. You can figure out these percentages of purity by dividing the number of karats by 24; for example, 14 divided by 24 equals 0.583 or 58.3%.