Hemoglobinuria due to hemolysis from other external causes

This code signifies the presence of hemoglobin in the urine resulting from the breakdown of red blood cells due to an external factor other than those specifically classified elsewhere. It indicates a hemolytic process where free hemoglobin is filtered by the kidneys and excreted. This condition is distinct from hemoglobinuria of unknown origin.

Apply this code when documentation clearly links hemoglobinuria to an identifiable external cause of hemolysis, such as certain drug reactions, exposure to toxins, or mechanical trauma not otherwise specified. Ensure the medical record specifies the hemolytic nature and the external etiology.

• Do not use this code if the cause of hemoglobinuria is not documented as external or hemolytic.
• Always sequence this code after the underlying external cause of hemolysis, if known and separately reportable.
• Review documentation carefully to differentiate from paroxysmal nocturnal hemoglobinuria (PNH) or other specific types of hemolytic anemia.