Other noninfectious disorders of lymphatic channels

This code signifies a range of non-infectious conditions affecting the lymphatic vessels, excluding those specifically classified elsewhere. It encompasses various structural or functional abnormalities of the lymphatic channels that are not caused by an infectious agent. These disorders can lead to impaired lymph flow and localized or generalized lymphatic system dysfunction.

Use this code for diagnoses such as idiopathic chylous ascites, non-filarial chyluria, or other unspecified non-infectious lymphatic channel disorders. Documentation should clearly state the non-infectious nature of the lymphatic condition and rule out more specific diagnoses like lymphedema (unless secondary to another condition coded elsewhere) or infectious causes.

• Differentiate from lymphedema (457.1, 457.2) which has more specific codes based on etiology.
• Ensure documentation explicitly states "non-infectious" to avoid confusion with infectious lymphadenitis or lymphangitis.
• Always look for a more specific ICD-9-CM code before defaulting to this "other" category.