ICD-10 Code D50 – Iron Deficiency Anemia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D50 – Iron deficiency anemia
What it is
D50 identifies iron deficiency anemia, a condition where the body lacks enough iron to make healthy red blood cells. This code covers iron deficiency anemia as documented by the clinician.
Clinical signs
Common findings include fatigue, pallor, weakness, and reduced exercise tolerance. Clinical features vary; refer to documentation, and confirm the diagnosis is supported by the provider’s assessment.
When to use this code
Use D50 when the record states iron deficiency anemia, including cases described as due to iron deficiency without a more specific subtype. You should also use it when the clinician documents the condition as the reason for evaluation or management.
If the chart names a specific cause, such as blood loss or another underlying disorder, code the documented condition and follow any applicable sequencing rules. Check documentation when the anemia type is unclear.
Do not use for
Do not use D50 for anemia types not caused by iron deficiency, such as anemia of chronic disease or vitamin deficiency anemia. Do not assign it when iron deficiency is mentioned without anemia.
Coding tip
Verify that both “iron deficiency” and “anemia” are documented before assigning D50.