D72.821: Monocytosis (symptomatic)
D72.821 is the billable ICD-10-CM diagnosis code for Monocytosis (symptomatic). It is a fully specified code, so it can be reported on a claim (subject to clinical documentation and your payer's rules).
Frequently asked questions
What is ICD-10-CM code D72.821?
D72.821 is the ICD-10-CM diagnosis code for Monocytosis (symptomatic). It belongs to category D72 (Other disorders of white blood cells).
Is D72.821 a billable code?
Yes. D72.821 is a billable, fully specified ICD-10-CM code, so it can be used on a claim (subject to documentation and payer rules).
What category does D72.821 belong to?
D72.821 is part of ICD-10-CM category D72 — Other disorders of white blood cells, which has 44 billable codes.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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