ICD-10 Code I89 – Other noninfective disorders of lymphatic vessels and lymph nodes (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I89 – Other noninfective disorders of lymphatic vessels and lymph nodes
What it is
I89 identifies noninfective disorders affecting the lymphatic vessels or lymph nodes. Use it for lymphatic problems not caused by infection and not described by a more specific code.
Clinical signs
Clinical features vary; refer to documentation. Commonly documented findings include swelling or lymphatic obstruction involving an extremity or other region, with no evidence of an infectious cause.
When to use this code
Use I89 when the provider documents a noninfective lymphatic disorder and does not name a more specific diagnosis. It may apply to chronic lymphatic dysfunction, lymphatic obstruction, or other unspecified lymph node or vessel disorders. Check documentation if the record only says “lymphedema” or another named condition.
Do not use for
Do not use this code for infectious lymphadenitis, malignant lymph node disease, or postoperative lymphedema when a more specific code is available. If the cause is documented elsewhere, code that condition instead.
Coding tip
Confirm whether the record describes a specific lymphatic disorder or only a nonspecific noninfective condition before assigning I89.