Hypertensive chronic kidney disease w stg 1-4/unsp chr kdny

This code signifies a diagnosis of chronic kidney disease (CKD) that is caused by or significantly exacerbated by hypertension. It specifically applies when the CKD has progressed to stages 1 through 4, or when the specific stage of CKD is not documented. This indicates a long-standing and ongoing impact of high blood pressure on renal function.

Use this code when documentation clearly links hypertension as the underlying cause or a significant contributing factor to the patient's CKD, and the CKD is specified as stages 1-4 or is unspecified. This code is appropriate when the physician explicitly states "hypertensive chronic kidney disease" or similar phrasing, and the CKD stage is not yet end-stage renal disease (ESRD).

• Always sequence this code before the code for the specific stage of CKD (N18.1-N18.4, N18.9).
• Do not use this code if the CKD is documented as stage 5 or ESRD; use I12.0 instead.
• Ensure the documentation explicitly states the causal link between hypertension and CKD; simply having both conditions present is not sufficient.