Acute lymphadenitis (L04)

Browse all the diagnosis codes used for acute lymphadenitis (l04). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Clinical Information

Lymphocele - Cystic mass containing lymph from diseased lymphatic channels or following surgical trauma or other injury.

Instructional Notations

Includes

This note appears immediately under a three character code title to further define, or give examples of, the content of the category.

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

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • 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