Personal history of urinary calculi

This code indicates a patient has a documented history of urinary calculi (kidney stones) but does not currently have an active stone or related acute symptoms. It signifies a past medical condition that may influence future health management or risk assessment. This history can be relevant for ongoing care, preventative measures, or when evaluating new symptoms.

Use this code for patients who have previously been diagnosed with and treated for kidney stones, and are now stone-free. It is appropriate for follow-up appointments, preventative care visits, or when documenting a patient's past medical history during an encounter for an unrelated condition. This code should not be used if the patient currently has an active stone or is experiencing acute symptoms related to nephrolithiasis.

• Do not use this code for active stone disease; use codes from N20-N23 for current calculi.
• Ensure documentation clearly states a history of stones, not a current presentation.
• Combine with other relevant codes for current conditions or reasons for the encounter.