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N13.2

Billable

Hydronephrosis with renal and ureteral calculous obstruction

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

Swelling of the kidney caused by kidney stones or ureteral stones blocking the flow of urine.

Coding Tips

  • •Document the presence of calculi in both the kidney and ureter to justify this code
  • •Consider if additional codes for the calculi themselves (N20-N21) should be assigned

Excludes 1 — Do NOT code together

  • Hydronephrosis with renal and ureteral calculous obstruction with infection (N13.6)

Code Hierarchy

└N13Obstructive and reflux uropathy└N13.2Hydronephrosis with renal and ureteral calculous obstruction
└N13.2Hydronephrosis with renal and ureteral calculous obstruction

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