ICD-10 Code D50.9 – Iron deficiency anemia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D50.9 – Iron deficiency anemia, unspecified
What it is
D50.9 identifies iron deficiency anemia when the record confirms iron deficiency anemia but does not specify the cause or type. Use it for a nonspecific diagnosis that still indicates anemia due to low iron.
Clinical signs
Typical findings include symptoms of anemia such as fatigue, weakness, pallor, and reduced exercise tolerance. Clinical features vary; refer to documentation, especially when the chart does not describe the underlying iron loss or deficiency source.
When to use this code
Use this code when the provider documents iron deficiency anemia without further detail. It also fits cases where the anemia is confirmed, but the record does not state whether it is due to blood loss, diet, malabsorption, or another cause.
Choose this code only when documentation supports iron deficiency anemia and no more specific ICD-10-CM option is available. If the chart identifies a specific cause or type, code that more precise diagnosis instead.
Do not use for
Do not use D50.9 for anemia without documented iron deficiency, or for other specified iron deficiency anemia categories. Check documentation if the record names a cause, because a more specific code may apply.
Coding tip
Code the most specific iron deficiency anemia documented, and query the provider if the record does not clearly support the unspecified option.