2025 ICD-10-CM code I12.9
(Active) Effective Date: N/A Revision Date: N/A Diseases of the circulatory system - Hypertensive chronic kidney disease 9 Feed
Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease.
Medical necessity is established by the diagnosis of both hypertension and chronic kidney disease, with the hypertension identified as the causative factor for the CKD. The specific stage of CKD impacts the required level of care and management.
Clinicians need to assess and document both the hypertension and the stage of chronic kidney disease. It's important to differentiate this from kidney disease causing hypertension (I15.-) or acute kidney failure (N17.-). They should also look for and document any related heart conditions or other complications.If the stage of chronic kidney disease is known, it must be coded with the appropriate N18.- code in addition to I12.9.
In simple words: High blood pressure has caused damage to the kidneys, resulting in chronic kidney disease that is either at stage 1, 2, 3, or 4, or the stage isn't specified.
Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease. This code encompasses conditions where hypertension is the cause of chronic kidney disease and the CKD is classified in stages 1-4 or is unspecified.It includes conditions like arteriosclerosis of the kidney, arteriosclerotic nephritis (chronic) (interstitial), hypertensive nephropathy, and nephrosclerosis.Use additional code to identify the stage of chronic kidney disease (N18.1-N18.4, N18.9).
Example 1: A patient with long-standing hypertension is found to have moderately decreased kidney function consistent with stage 3 CKD.Both conditions are documented, and no other cause for the kidney disease is identified., A patient with hypertension has an elevated creatinine level and proteinuria, indicating chronic kidney disease. Further testing is needed to determine the stage of the CKD., A patient with a history of high blood pressure develops chronic kidney disease.Their physician documents hypertensive chronic kidney disease, but the available information in the chart doesn't specify the CKD stage.
Documentation should clearly link the hypertension as the cause of the chronic kidney disease.The physician's notes should include relevant lab results (e.g., creatinine, GFR, proteinuria), imaging findings, and the stage of chronic kidney disease, if known.If the stage is not specified, this should also be documented.
** For accurate and specific coding, use a tool like iFrameAI if further detail beyond stage 5 or unspecified CKD is required.
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