ICD-10 Code D63.1 – Anemia in chronic kidney disease (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D63.1 – Anemia in chronic kidney disease
What it is
D63.1 identifies anemia that is documented as being due to chronic kidney disease. Use it when the anemia and CKD are linked in the record.
Clinical signs
Clinical features vary; refer to documentation. Commonly, the chart may describe pallor, fatigue, weakness, or reduced exercise tolerance in a patient with CKD.
When to use this code
Use this code when the provider states the anemia is caused by, or associated with, chronic kidney disease. It may appear alongside the CKD code when both conditions are documented.
If the note only says “anemia” and CKD is present, do not assume the relationship unless the provider clearly links them. Check documentation for cause-and-effect language.
Do not use for
Do not use D63.1 for anemia from acute kidney injury, blood loss, iron deficiency, or another stated cause. Check documentation if the etiology is unclear.
Coding tip
Always code the underlying CKD first, then add D63.1 only when the record supports anemia in chronic kidney disease.