ICD-10 Code D55.1 – Anemia due to other disorders of glutathione metabolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D55.1 – Anemia due to other disorders of glutathione metabolism
What it is
This code identifies anemia caused by an underlying disorder of glutathione metabolism. Use it when the record links the anemia to that metabolic problem, not to another more specific cause.
Clinical signs
Clinical features vary; refer to documentation. You may see signs of anemia such as fatigue, pallor, weakness, or shortness of breath, with evidence that the anemia is secondary to a glutathione metabolism disorder.
When to use this code
Use D55.1 when the provider documents anemia due to a disorder of glutathione metabolism, or when the anemia is clearly attributed to that condition. Apply it for confirmed secondary anemia, not for unspecified anemia with no causal link. If the chart names a different hemolytic or nutritional cause, code that condition instead.
Do not use for
Do not use this code for anemia from blood loss, iron deficiency, vitamin deficiency, or other metabolic disorders not involving glutathione. Check documentation when the cause is unclear.
Coding tip
Code the underlying glutathione disorder first if documented, and add D55.1 only when the anemia is explicitly linked to it.