ICD-10 Code D70.3 – Neutropenia due to infection (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D70.3 – Neutropenia due to infection
What it is
D70.3 identifies neutropenia that is caused by an infection. Use it when the record links the low neutrophil count to an infectious process rather than another cause.
Clinical signs
Clinical features vary; refer to documentation. Patients may have evidence of infection with an associated decreased neutrophil count, and the provider should document the causal relationship.
When to use this code
Use D70.3 when the clinician states that neutropenia is due to infection, or when the note clearly connects both conditions. It is appropriate for inpatient, outpatient, or consult documentation that supports an infectious cause. Check documentation if the cause is unclear or if another etiology is listed.
Do not use for
Do not use this code for neutropenia from chemotherapy, drugs, congenital disorders, or other specified causes. If infection is present but not documented as the cause of neutropenia, check documentation.
Coding tip
Confirm the provider’s wording ties neutropenia to infection before assigning D70.3.