I89.1
✓ Billable
Lymphangitis
ICD-10-CM · FY2026 · Diseases of the Circulatory System
Code
I89.1
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Circulatory System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code I89.1?
ICD-10-CM code I89.1 represents Lymphangitis. It is a billable diagnosis code in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.
Is I89.1 billable?
Yes. I89.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is I89.1 in?
I89.1 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.
Related codes in the I89 category
I89
Other noninfective disorders of lymphatic vessels and lymph nodes
Non-billable
I89.0
Lymphedema, not elsewhere classified
Billable
I89.8
Other specified noninfective disorders of lymphatic vessels and lymph nodes
Billable
I89.9
Noninfective disorder of lymphatic vessels and lymph nodes, unspecified
Billable
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