ICD-10 Code D72.829 – Elevated white blood cell count, unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code D72.829 – Elevated white blood cell count, unspecified
What it is
This code identifies an elevated white blood cell count when the record does not specify the cause or a more precise type of leukocytosis. Use it for a documented abnormal lab finding, not a disease diagnosis.
Clinical signs
Clinical features vary; refer to documentation. The chart may note leukocytosis on laboratory testing, sometimes with an associated infection, inflammation, stress response, or other underlying condition.
When to use this code
Use D72.829 when the provider documents elevated white blood cell count, leukocytosis, or a similar nonspecific finding and no more specific code is supported. It is appropriate when the abnormality is the reason for assessment or is listed as an active problem. If another documented condition explains the finding, code that condition first when directed by the record.
Do not use for
Do not use this code for a confirmed infection, leukemia, or another defined hematologic disorder when a more specific diagnosis is documented. Check documentation if the elevated count is only a transient lab result without clinical significance.
Coding tip
Code the underlying cause when clearly documented; use D72.829 only when the chart supports an unspecified elevated white blood cell count.