ICD-10 Code D70 – Neutropenia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D70 – Neutropenia
What it is
Neutropenia means an abnormally low number of neutrophils, a type of white blood cell that helps fight infection. Use this code when the record documents neutropenia without a more specific cause or subtype.
Clinical signs
Clinical features vary; refer to documentation. Patients may have increased infection risk, especially recurrent or severe infections, but the diagnosis is usually confirmed by laboratory evidence and provider assessment.
When to use this code
Use D70 when the provider documents neutropenia as the diagnosed condition and no more specific ICD-10 code is available. It may apply to acquired, unspecified, or clinically significant neutropenia when the chart does not identify a separate underlying cause.
Code the documented condition, not just a low count mentioned in passing. If neutropenia is linked to chemotherapy, another disorder, or a specific drug reaction, check documentation for the more accurate code set.
Do not use for
Do not use this code for isolated abnormal lab results without a diagnosis. Do not use it when the record clearly identifies a different primary condition or a more specific neutropenia code.
Coding tip
Verify whether neutropenia is the final diagnosis, an incidental finding, or secondary to another documented condition before assigning D70.