ICD-10 Code D72.10 – Eosinophilia, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D72.10 – Eosinophilia, unspecified
What it is
D72.10 identifies eosinophilia when the record does not specify a cause or a more precise type. It means an increased eosinophil count is documented, but the underlying reason is not further defined.
Clinical signs
Clinical features vary; refer to documentation. Eosinophilia may be found on blood testing and can occur with allergic, infectious, inflammatory, or other conditions, but the code itself does not define the cause.
When to use this code
Use D72.10 when the provider documents eosinophilia without specifying a related diagnosis or a more detailed eosinophil disorder. It also fits when the chart notes elevated eosinophils and no further clarification is available. If the underlying condition is identified, code that condition instead.
Do not use for
Do not use this code for eosinophilia that is clearly linked to a documented cause when a more specific diagnosis is available. Check documentation if the record describes hypereosinophilic syndrome or another defined disorder.
Coding tip
Query the provider when eosinophilia is recorded without a clear explanation, because the correct code depends on whether a more specific diagnosis is documented.