ICD-10 Code I89.9 – Noninfective Disorder of Lymphatic Vessels and Lymph Nodes, Unspecified (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I89.9 – Noninfective disorder of lymphatic vessels and lymph nodes, unspecified
What it is
I89.9 identifies a noninfective disorder affecting lymphatic vessels or lymph nodes when the exact condition is not documented. Use it for lymphatic problems not caused by infection and not named more specifically.
Clinical signs
Clinical features vary; refer to documentation. Findings may include lymphatic swelling, enlarged lymph nodes, or other nonspecific lymphatic abnormalities without evidence of infection.
When to use this code
Use this code when the record states a lymphatic vessel or lymph node disorder but does not specify the type. It is appropriate when the provider documents a noninfective lymphatic condition and no more detailed code is available. Check documentation for laterality, cause, or a more specific diagnosis.
Do not use for
Do not use this code for infectious lymphadenitis, malignant lymph node disease, or clearly defined lymphedema codes. If the note names a specific lymphatic disorder, code that diagnosis instead.
Coding tip
Query the provider when the chart only says “lymphatic disorder” so you can confirm whether a more specific code applies.