Is L04.3 a billable ICD-10 code?

Yes. L04.3 (Acute lymphadenitis of lower limb) is billable and can be used for insurance claims. Always verify payer-specific requirements.

L04.3 ✓ Billable

Acute lymphadenitis of lower limb

Q: What is ICD-10 code L04.3?

ICD-10-CM code L04.3 stands for "Acute lymphadenitis of lower limb". It is a billable code in the Diseases of the Skin and Subcutaneous Tissue chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Skin and Subcutaneous Tissue

Code

L04.3

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Skin and Subcutaneous Tissue

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code L04.3?

ICD-10-CM code L04.3 represents Acute lymphadenitis of lower limb. It is a billable diagnosis code in the Diseases of the Skin and Subcutaneous Tissue chapter, effective October 1, 2025 – September 30, 2026.

Is L04.3 billable?

Yes. L04.3 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is L04.3 in?

L04.3 belongs to the Diseases of the Skin and Subcutaneous Tissue chapter (L00–L99) of ICD-10-CM.

Related codes in the L04 category

L04 Acute lymphadenitis Non-billable L04.0 Acute lymphadenitis of face, head and neck Billable L04.1 Acute lymphadenitis of trunk Billable L04.2 Acute lymphadenitis of upper limb Billable L04.8 Acute lymphadenitis of other sites Billable L04.9 Acute lymphadenitis, unspecified Billable

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