Anemia in chronic diseases classified elsewhere (D63)

The ICD-10 code D63 and its subcodes are used to classify anemia that occurs as a result of chronic diseases found elsewhere in a patient’s medical record. These codes specifically cover anemia linked to underlying health conditions, rather than anemia as a primary disorder.

For example, D63.0 refers to anemia caused by neoplastic diseases, such as anemia in ovarian carcinoma or hemolytic anemia related to malignant tumors. The code D63.1 is used for anemia associated with chronic kidney disease, including cases requiring erythropoietin treatment or linked to various stages of renal failure. Meanwhile, D63.8 covers anemia resulting from other chronic illnesses like endocrine disorders (thyroid, adrenal, pituitary dysfunction), metabolic disorders, AIDS, or chronic infections. These synonyms help medical coders accurately select the correct ICD-10 code for conditions like "anemia of chronic disease," "anemia secondary to renal failure," or "anemia of endocrine disorder." Understanding these distinctions is essential when assigning the ICD-10 code for anemia in chronic diseases, ensuring precise documentation and coding tailored to the patient’s underlying condition.