Recurrent and persistent hematuria w dense deposit disease

This code signifies the presence of blood in the urine (hematuria) that is both recurring and ongoing, specifically when it is caused by dense deposit disease (DDD). DDD is a rare kidney disorder characterized by abnormal deposits of complement proteins within the kidney's filtering units, leading to kidney damage and often manifesting as persistent hematuria.

Use this code when documentation clearly indicates recurrent and persistent hematuria, and a definitive diagnosis of dense deposit disease has been established through renal biopsy or other diagnostic studies. This code is appropriate for patients with confirmed DDD who are experiencing ongoing or intermittent episodes of hematuria.

• Ensure documentation explicitly links the hematuria to dense deposit disease; do not assume causation.
• Distinguish from other causes of hematuria (e.g., urinary tract infection, kidney stones) that are not due to DDD.
• Consider sequencing with codes for chronic kidney disease (CKD) if also present, as DDD often progresses to CKD.