593.2
ICD-9-CMThis code signifies the presence of a non-congenital, fluid-filled sac within the kidney parenchyma. These cysts are typically benign and can be solitary or multiple, often developing as a person ages. They are distinct from inherited polycystic kidney diseases.
Apply this code when documentation specifies an "acquired renal cyst," "simple kidney cyst," or "cortical cyst" identified through imaging (e.g., ultrasound, CT scan, MRI). This code is appropriate for incidental findings or when a cyst is being monitored.
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