D72.820 ICD-10-CM Code: Lymphocytosis (symptomatic)
D72.820 is the billable ICD-10-CM code for “Lymphocytosis (symptomatic)” in the FY 2027 U.S. code set, effective Oct 1, 2026.
Official description
D72.820Lymphocytosis (symptomatic)
ICD-10-CM diagnosis code · United States clinical modification
Where D72.820 sits
- 1
Chapter 3
Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89)
- 2
Section
Other disorders of blood and blood-forming organs (D70-D77)
- 3
Category D72
Other disorders of white blood cells
- 4
Subcategory D72.82
Elevated white blood cell count
- 5
Code D72.820
Lymphocytosis (symptomatic)
Notes for this code
Inclusion terms
- Elevated lymphocytes
Code first
No “code first” instruction is listed for D72.820.
Use additional code
No “use additional code” instruction is listed for D72.820.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for D72.820.
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for D72.820.
Source and release
- Data release
- U.S. ICD-10-CM · FY 2027
- Effective date
- Oct 1, 2026
- Publisher
- Vero Scribe Inc.
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Frequently asked questions
What does ICD-10-CM code D72.820 mean?
D72.820 is the FY 2027 U.S. ICD-10-CM code for “Lymphocytosis (symptomatic).”
Is D72.820 a billable or specific ICD-10-CM code?
Yes. In the FY 2027 reference data used on this page, D72.820 has no child codes and is presented as a billable/specific code. Always confirm the active code set and payer requirements before use.
Where is D72.820 located in ICD-10-CM?
D72.820 is listed in Chapter 3, Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (D50-D89), within Other disorders of blood and blood-forming organs (D70-D77) (D70–D77), under category D72, Other disorders of white blood cells and subcategory D72.82, Elevated white blood cell count.
What coding notes are listed for D72.820?
Its listed inclusion terms are Elevated lymphocytes. No code-first instruction is listed. No Excludes1 note is listed. No Excludes2 note is listed.