ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 17, 2017

See: Acute lymphadenitis

L04 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Acute lymphadenitis
Includes
  • abscess (acute) of lymph nodes, except mesenteric
  • acute lymphadenitis, except mesenteric
Excludes1
  • 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)

More specific codes for Acute lymphadenitis

  • 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
Back to L04
See the 2017 ICD-10-CM Coding Guidelines.

Questions related to L04 Acute lymphadenitis

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.