Lymphangitis

This code represents inflammation of the lymphatic vessels, typically characterized by red streaks extending from an infection site towards regional lymph nodes. It signifies a non-infectious or chronic inflammatory process affecting the lymphatic system.

Use this code for documented cases of lymphangitis that are not explicitly described as acute or infectious. This often applies to chronic or recurrent inflammatory conditions of the lymphatic vessels, or when the underlying cause is not bacterial. Documentation should clearly indicate "lymphangitis" without specifying an acute bacterial etiology.

• Differentiate carefully between acute bacterial lymphangitis (L03.-) and other forms; the Excludes1 note is critical.
• Always review documentation for the acuity and etiology of the lymphangitis to ensure correct code assignment.
• If an underlying systemic disease or condition is causing the lymphangitis, code that condition first, followed by this code.