L04.3

Billable

Acute lymphadenitis of lower limb

L04.3 is the ICD-10-CM code for Acute lymphadenitis of lower limb. It is a billable, specific code valid for reimbursement.

Status
Billable
Chapter
L00-L99
Parent
L04
Edition
FY2026

L00-L99 Diseases of the skin and subcutaneous tissue

What this means — in plain language

MedlinePlus · NIH

The lymphatic system is a network of tissues and organs. It is made up of: Lymph - a fluid that contains white blood cells that defend against germs Lymph vessels - vessels that carry lymph throughout your body. They are different from blood vessels. Lymph nodes - glands found throughout the lymph vessels. Along with your spleen , these nodes are where white blood cells fight infection. Your bone marrow and thymus…

Read more about Lymphatic Diseases at MedlinePlus ↗

Source: U.S. National Library of Medicine (MedlinePlus). Informational only — not medical advice.

Includes

  • Acute lymphadenitis of hip

Excludes2 — not included here

  • acute lymphadenitis of groin (L04.1)

Frequently asked questions

What is ICD-10 code L04.3?
L04.3 is the ICD-10-CM code for "Acute lymphadenitis of lower limb". It falls under L00-L99 Diseases of the skin and subcutaneous tissue.
Is L04.3 a billable code?
Yes — L04.3 is a billable, specific ICD-10-CM code valid for reimbursement.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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