I89.1 – Lymphangitis

ICD-10-CM 2027 diagnosis code · Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified

Billable code

ICD-10-CM code I89.1

Code: I89.1 (claims format: I891)
Description: Lymphangitis
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 9. Diseases of the circulatory system (I00-I99)
Block: I80-I89 Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified
Parent codes: I89

Notes for I89.1

Applicable to:

Chronic lymphangitis
Lymphangitis NOS
Subacute lymphangitis

Excludes1 (not coded here):

acute lymphangitis (L03.-)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

I89 – Other noninfective disorders of lymphatic vessels and lymph nodes

Excludes1 (not coded here):

chylocele, tunica vaginalis (nonfilarial) NOS (N50.89)
enlarged lymph nodes NOS (R59.-)
filarial chylocele (B74.-)
hereditary lymphedema (Q82.0)

Index terms for I89.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in I89

Frequently asked questions

What is ICD-10 code I89.1?

I89.1 is the ICD-10-CM code for lymphangitis, in the block I80-I89 (Diseases of veins, lymphatic vessels and lymph nodes, not elsewhere classified).

Is I89.1 a billable code?

Yes. I89.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does I89.1 belong to?

It belongs to category I89 – Other noninfective disorders of lymphatic vessels and lymph nodes.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.