Hemolytic-uremic syndrome, unspecified

This code represents a severe, acute disorder characterized by hemolytic anemia, thrombocytopenia, and acute kidney injury, without further specification of its cause or type. It signifies a microangiopathic hemolytic anemia where red blood cells are destroyed, platelets are consumed, and the kidneys are damaged.

Use this code when documentation clearly states "hemolytic-uremic syndrome" without specifying if it's typical (STEC-HUS), atypical (aHUS), or drug-induced. This code is appropriate when the etiology is unknown or not yet determined at the time of coding.

• Avoid using this code if the documentation specifies the type of HUS (e.g., STEC-HUS, aHUS); instead, use a more specific code.
• Always review the entire medical record for any mention of the underlying cause or specific type of HUS.
• Consider sequencing this code as a principal diagnosis if it is the primary reason for the encounter, followed by codes for associated manifestations like acute kidney failure.