D72.820Billable
Lymphocytosis (symptomatic)
- Chapter
- 3. Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism
- Category
- D72
- Effective date
- October 1, 2026
Related codes in category D72
D72Other disorders of white blood cellsD72.0Genetic anomalies of leukocytesYesD72.1EosinophiliaD72.10Eosinophilia, unspecifiedYesD72.11Hypereosinophilic syndrome [HES]D72.110Idiopathic hypereosinophilic syndrome [IHES]YesD72.111Lymphocytic Variant Hypereosinophilic Syndrome [LHES]YesD72.118Other hypereosinophilic syndromeYesD72.119Hypereosinophilic syndrome [HES], unspecifiedYesD72.12Drug rash with eosinophilia and systemic symptoms syndromeYesD72.18Eosinophilia in diseases classified elsewhereYesD72.19Other eosinophiliaYes
Frequently asked questions
What is ICD-10 code D72.820?
D72.820 is an ICD-10-CM diagnosis code for Lymphocytosis (symptomatic).
Is D72.820 a billable code?
Yes. D72.820 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is D72.820 in?
D72.820 falls under Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
When did D72.820 become effective?
D72.820 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to D72.820?
D72.820 belongs to category D72, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.