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ICD-10-CM L04: Acute lymphadenitis · Codelle

L04

ICD-10-CM

Acute lymphadenitis

Clinical Notes

Includes

abscess (acute) of lymph nodes, except mesenteric
acute lymphadenitis, except mesenteric

Excludes 1 · Not coded here

chronic or subacute lymphadenitis, except mesenteric (I88.1)
enlarged lymph nodes (R59.-)
human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
lymphadenitis NOS (I88.9)
nonspecific mesenteric lymphadenitis (I88.0)

Code Hierarchy

Subcodes (6)

L04.0Acute lymphadenitis of face, head and neck

L04.1Acute lymphadenitis of trunk

L04.2Acute lymphadenitis of upper limb

L04.3Acute lymphadenitis of lower limb

L04.8Acute lymphadenitis of other sites

L04.9Acute lymphadenitis, unspecified

Same Category

L04.0Acute lymphadenitis of face, head and neck L04.1Acute lymphadenitis of trunk L04.2Acute lymphadenitis of upper limb L04.3Acute lymphadenitis of lower limb L04.8Acute lymphadenitis of other sites

L04.9

Acute lymphadenitis, unspecified

Code History

Added in FY2024
Active (FY2026)

Change History

FY2026 snapshotAcute lymphadenitis
FY2025 snapshotAcute lymphadenitis
FY2024 snapshotAcute lymphadenitis