N20-N23: Urolithiasis

N22: Calculus of urinary tract in diseases classified elsewhere

The code group N22 refers to the condition known as "calculus of the urinary tract in diseases classified elsewhere". This condition occurs when hard mineral and salt deposits, also known as calculi or stones, form anywhere within the urinary system which includes the kidneys, bladder, ureters, and urethra. These stones can develop as a complication of another disease. Common symptoms may include severe pain in the lower back or abdomen, frequent urination, difficulty in urinating, presence of blood in the urine, and other urinary issues. The exact cause and methods of transmission often depend on the underlying disease, but certain factors like dehydration, certain diets, specific medications and some medical conditions increase the risk. The progression of the condition can vary, ranging from asymptomatic to causing acute distress and recurrent infections within the urinary tract.