Thank you for such a good answer. As a student I like to search this site and research the answers to help me learn. You were a big help in my studying tonight.I think 794.4 .
Please find in ICD 9 CM under index of diseases
Findings -- > Creatinine clearance --> 794.4
Renal function, in nephrology, is an indication of the state of the kidney and its role in renal physiology. Glomerular filtration rate (GFR) describes the flow rate of filtered fluid through the kidney. Creatinine clearance rate (CCr or CrCl) is the volume of blood plasma that is cleared of creatinine per unit time and is a useful measure for approximating the GFR. Both GFR and CCr may be accurately calculated by comparative measurements of substances in the blood and urine, or estimated by formulas using just a blood test result (eGFR and eCCr).
Hope this helps!