Lymphadenitis, unspecified, except mesenteric

This code represents inflammation of the lymph nodes that is not specified as being due to a particular cause or affecting a specific anatomical region, excluding the mesenteric lymph nodes. It indicates a general, non-specific lymph node inflammation.

Use this code when documentation indicates generalized or localized lymphadenitis without further specificity regarding its etiology (e.g., bacterial, viral) or precise anatomical location, other than the mesentery. This code is appropriate when the provider has not identified the underlying cause or a more specific type of lymphadenitis.

• Avoid using this code if the documentation specifies the cause (e.g., infectious mononucleosis, tuberculosis) or a more precise anatomical site (e.g., cervical, inguinal).
• Always seek clarification from the provider if a more specific diagnosis of lymphadenitis is suspected but not documented.
• Do not use for mesenteric lymphadenitis, which has a separate and more specific code.