Unspecified noninfectious disorder of lymphatic channels

This code represents a broad category for conditions affecting the lymphatic vessels that are not caused by an infection and lack further specific diagnostic detail. It indicates a functional or structural abnormality of the lymphatic system, such as lymphedema or lymphangiectasia, where the underlying cause or specific type is not documented.

Use this code when documentation indicates a non-infectious lymphatic disorder, but the specific type (e.g., primary vs. secondary lymphedema, chylous ascites) or precise etiology (e.g., congenital, post-surgical, traumatic) is not clearly identified. This code is appropriate when the provider's diagnosis is simply "lymphatic disorder, unspecified" or "non-infectious lymphangitis, NOS."

• Avoid using this code if a more specific diagnosis for the lymphatic disorder is available and documented.
• Query the provider for further specificity if the documentation suggests a known cause or type of lymphatic disorder (e.g., congenital lymphedema, post-mastectomy lymphedema).
• This code should be used as a last resort when no other specific non-infectious lymphatic disorder code can be assigned.