N26.2
BillablePage kidney
HCC Category Mapping
RxHCCHCC 187 — Hypertension
0.000What This Code Means
Kidney scarring and high blood pressure caused by compression of the kidney from bleeding or fluid collection on its surface.
Coding Tips
- •This is a specific post-traumatic or post-hemorrhagic condition; document the inciting event if known
- •May require additional coding for hypertension if present and related to the Page kidney
Clinical Significance
Page kidney represents a rare form of secondary hypertension caused by external compression of the kidney, leading to activation of the renin-angiotensin system. This condition requires careful monitoring as it can progress to chronic kidney disease and may necessitate surgical intervention to preserve renal function.
Documentation Requirements
- ✓Evidence of kidney compression from hematoma, cyst, or other mass effect
- ✓Documentation of hypertension directly related to kidney compression
- ✓Imaging studies showing kidney deformity or compression
- ✓Exclusion of other causes of secondary hypertension
- ✓Assessment of renal function with creatinine and GFR
- ✓Blood pressure measurements and response to treatment
- ✓History of trauma, surgery, or underlying condition causing compression
Commonly Confused Codes
I15.0 — Renovascular hypertension (specifically from renal artery stenosis, not compression)N26.1 — Atrophy of kidney (unilateral) without compression componentN28.1 — Cyst of kidney (simple cyst without compression effect)I10 — Essential hypertension (primary hypertension without renal cause)N18.6 — End stage renal disease (advanced CKD, not compression-related)