Bill is a 49-year-old black male who presents to the ED with complaints of fever, malaise, oliguria, anorexia, and exquisite flank pain. Patient also states he had several episodes of hematuria. Patient denied any history of diabetes, hypertension, or high cholesterol . Blood work showed his BUN and creatinine levels were exceedingly high and the electrolytes were grossly abnormal. Non-contrast

helical CT was done and confirmed there were several kidney stones in the ureters. One was quite large on the right side and there were concerns about blockage and the potential for hydronephrosis. Patient was admitted for pain control and further work up treatment. The large kidney stone in the right ureter was causing a blockage and the patient underwent ESWL to break up the stone. Unfortunately, he did develop hydronephrosis, though with careful monitoring, it resolved.

Dx: Hydronephrosis with ureteral stricture

First-listed/principal diagnosis: ________
Secondary diagnosis: ________
Fill in the blank with correct word.

First-listed/principal diagnosis: ________
Answer: Hydronephrosis with ureteral stricture – N13.1

Secondary diagnosis: ________
Answer: None