ICD-10 Code D63.0 – Anemia in neoplastic disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D63.0 – Anemia in neoplastic disease
What it is
D63.0 identifies anemia that occurs with a neoplastic disease, meaning a cancer or other tumor is contributing to the low red blood cell condition. Use it when the anemia is documented as due to, or associated with, the neoplasm.
Clinical signs
Common findings include pallor, fatigue, weakness, and reduced exercise tolerance. Clinical features vary; refer to documentation, and confirm the anemia is linked to the neoplastic process rather than another cause.
When to use this code
Use D63.0 when the provider documents anemia in association with an active neoplasm, including when the cancer is the stated cause. It may be reported with the neoplasm code when both conditions are documented. Check documentation if the anemia cause is unclear.
Do not use for
Do not use this code for anemia from blood loss, nutritional deficiency, or chronic kidney disease unless the record also supports neoplastic disease as the cause. Do not assign it when the anemia is unrelated to the tumor.
Coding tip
Link D63.0 only when the record clearly ties the anemia to the neoplasm.