Acute lymphadenitis of other sites

This code signifies an acute inflammatory process affecting lymph nodes in locations other than the head, face, or neck. It indicates a sudden onset of tender, enlarged lymph nodes, typically in response to a localized infection or inflammation elsewhere in the body.

Apply this code when documentation specifies acute inflammation of lymph nodes in areas such as the axilla, groin, mediastinum, or mesentery. This diagnosis is supported by physician notes detailing acute onset, tenderness, and enlargement of lymph nodes in these "other" anatomical sites.

• Ensure the documentation clearly specifies "acute" and the affected lymph node site is not head, face, or neck.
• Investigate for an underlying infection or cause, as a more specific code may be appropriate for the primary condition.
• Do not use for chronic lymphadenitis; a different code exists for that condition.