ICD-10 Code D52 – Folate deficiency anemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D52 – Folate deficiency anemia
What it is
D52 identifies anemia caused by folate deficiency, meaning the body does not have enough folate to make healthy red blood cells. It is a megaloblastic anemia and may be due to poor intake, malabsorption, or increased need.
Clinical signs
Patients may have fatigue, pallor, weakness, or shortness of breath related to anemia. Clinical features vary; refer to documentation, and confirm that the record supports folate deficiency as the cause.
When to use this code
Use D52 when the provider documents folate deficiency anemia or clearly links anemia to folate deficiency. This code fits cases where the deficiency is the confirmed cause, not merely a suspected nutritional issue. Check documentation if the record only says macrocytic anemia or low folate without a stated diagnosis.
Do not use for
Do not use D52 for vitamin B12 deficiency anemia, iron deficiency anemia, or anemia of chronic disease. Also avoid it when folate deficiency is mentioned without anemia, unless the provider documents the condition as anemia.
Coding tip
Code D52 only when the provider explicitly documents folate deficiency anemia or a clear causal relationship in the note.