L04Acute lymphadenitis
ICD-10-CM category (non-billable header) code — part of Infections of the skin and subcutaneous tissue (L00-L08)
Coding Notes
Includes
- abscess (acute) of lymph nodes, except mesenteric
- acute lymphadenitis, except mesenteric
Excludes1 (never code both together)
- 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)
Subcategories (6)
- L04.0 Acute lymphadenitis of face, head and neck
- L04.1 Acute lymphadenitis of trunk
- L04.2 Acute lymphadenitis of upper limb
- L04.3 Acute lymphadenitis of lower limb
- L04.8 Acute lymphadenitis of other sites
- L04.9 Acute lymphadenitis, unspecified