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ICD-10-CM Current in FY 2027

L04

Acute lymphadenitis

Release
FY 2027
Effective

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files.

Includes

abscess (acute) of lymph nodes, except mesenteric

Includes

acute lymphadenitis, except mesenteric

Excludes1

chronic or subacute lymphadenitis, except mesenteric ( I88.1 )

Excludes1

enlarged lymph nodes ( R59 .-)

Excludes1

human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy ( B20 )

Excludes1

lymphadenitis NOS ( I88.9 )

Excludes1

nonspecific mesenteric lymphadenitis ( I88.0 )

More Specific Codes

6 codes under L04

Version History

How L04 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Acute lymphadenitis

  2. FY 2026 Effective

    Unchanged

    Acute lymphadenitis

Codes whose official notes reference L04

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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