L04.3

Billable

ChapterL00–L99

Ranksubcategory

Official Description

Acute lymphadenitis of lower limb

Metadata & Insights

•2026 ICD-10-CM Edition - Effective October 1, 2025.
•Billable/specific code (valid for reimbursement).
•Chapter 12: Diseases of the Skin and Subcutaneous Tissue (L00-L99).

Instructional Notes

Includes

Acute lymphadenitis of hip

Excludes2(Not included here)

acute lymphadenitis of groin (L04.1)

General instructions are available for the parent sections:

View CH12 Notes View L00-L08 Notes View L04 Notes

Clinical Hierarchy

CH12Diseases of the skin and subcutaneous tissue (L00-L99)

L00-L08Infections of the skin and subcutaneous tissue (L00-L08)

L04Acute lymphadenitis

L04.3Acute lymphadenitis of lower limb

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to L04.3:

categoryL04

Acute lymphadenitis

View context instructions

blockL00-L08

Infections of the skin and subcutaneous tissue (L00-L08)

View context instructions

chapterCH12

Diseases of the skin and subcutaneous tissue (L00-L99)

View context instructions

Alphabetic Index Mentions

These are Diagnosis Index lookup paths that route to L04.3. Use them as entry terms for search, then confirm final coding instructions in the Tabular List and notes above.

2 raw paths

Lymphadenitis2 unique routes

acute(2 variants)

hip→L04.3

limb

lower→L04.3

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 791

Prematurity with Major Problems

DRG 793

Full Term Neonate with Major Problems

DRG 814

Reticuloendothelial and Immunity Disorders with MCC

DRG 815

Reticuloendothelial and Immunity Disorders with CC

DRG 816

Reticuloendothelial and Immunity Disorders without CC/MCC

Cross Reference

Find Procedures (ICD-10-PCS)

Find surgical and procedural codes related to Acute lymphadenitis of lower limb.

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