Hemolytic disease of newborn (P55)

ICD-10 code P55 covers hemolytic disease of the newborn, a condition where a newborn’s red blood cells are destroyed due to immune reactions. This section includes specific codes for different immune causes leading to this disease.

Codes under this section specify the particular form of hemolytic disease. For example, P55.0 identifies Rh isoimmunization of the newborn, commonly known as rhesus isoimmunization, caused by antibodies like anti-D or anti-c attacking fetal red cells. The ICD-10 code for ABO isoimmunization (P55.1) is used when neonatal jaundice or anemia results from ABO blood group incompatibility between mother and baby. P55.8 refers to other types of hemolytic disease due to less common immune reactions, such as Kell or Duffy isoimmunization, including autoimmune hemolytic anemia forms. Lastly, P55.9 covers unspecified hemolytic disease cases, often used when the exact immune cause is unknown. These codes help medical coders accurately classify and document newborn hemolytic conditions based on their specific immune causes for treatment and billing purposes.