Hemoglobinuria

This code represents the presence of free hemoglobin in the urine, indicating the breakdown of red blood cells within the bloodstream (intravascular hemolysis). It is a symptom rather than a definitive diagnosis, often signaling an underlying hemolytic process.

Use this code when documentation explicitly states "hemoglobinuria" without further specification of its cause. This typically occurs when laboratory tests confirm the presence of hemoglobin in the urine, and the underlying etiology is either unknown or not yet fully investigated.

• Always seek to identify and code the underlying cause of hemoglobinuria if known, as this code often represents a symptom.
• Carefully review documentation to differentiate hemoglobinuria from hematuria (presence of intact red blood cells in urine).
• Be mindful of the "Excludes1" notes; do not code this alongside D59.6 or D59.5.