I15.1

Billable

Hypertension secondary to other renal disorders

HCC Category Mapping

RxHCCHCC 187 — Hypertension

0.000

What This Code Means

High blood pressure caused by kidney disorders other than renovascular disease, such as glomerulonephritis or polycystic kidney disease.

Coding Tips

•I15.1 is used for secondary hypertension from renal causes excluding renovascular stenosis; document the specific kidney disorder
•Verify the kidney disease is the documented cause of the hypertension, not a coincidental finding

Clinical Significance

Hypertension secondary to other renal disorders encompasses elevated blood pressure caused by non-vascular kidney diseases such as glomerulonephritis, polycystic kidney disease, or renal parenchymal disease. Identifying the renal etiology is critical for treatment planning, as managing the underlying kidney disease may help control the hypertension.

Documentation Requirements

✓Provider documentation explicitly stating hypertension is secondary to a renal disorder
✓Identification and documentation of the specific underlying renal disorder
✓Blood pressure readings
✓Renal function assessment (eGFR, creatinine, urinalysis)
✓Additional code for the underlying renal condition
✓Current treatment regimen addressing both hypertension and the renal disorder

Commonly Confused Codes

I15.0 — Renovascular hypertension (use when renal artery stenosis is the cause, not renal parenchymal disease)I10 — Essential hypertension (use when no secondary cause is identified)I12.0/I12.9 — Hypertensive CKD (use when CKD is present WITH hypertension but the causal direction is hypertension causing CKD)I15.2 — Hypertension secondary to endocrine disorders (different underlying etiology)I15.8 — Other secondary hypertension (use for secondary causes not otherwise classified)

Code Hierarchy

└I15Secondary hypertension └I15.1Hypertension secondary to other renal disorders

└I15.1Hypertension secondary to other renal disorders