The ICD-10-CM codes reported for uncontrolled hypertension with stage 3 chronic kidney disease is I12.9 with secondary code N18.3.
The ICD-10-CM stands for International Classification of Diseases, 10th Revision, Clinical Modification. These codes are used in US for classifying diagnosis and reasons for medical visits.
Specifically codes from category I12 implies Hypertensive Chronic Kidney disease. Chronic Kidney disease is further classified into the category N18 depending on the stage of the kidney disease.
So in order to report a case of uncontrolled hypertension with stage 3 kidney disease, the code I12.9 and a secondary code N18.3 are used.
