MCMedicalCodingSoftware
I89.1

I89.1: Lymphangitis

Billable / specific codeICD-10-CM

I89.1 is a billable, specific ICD-10-CM code for lymphangitis. It is valid for submission on a claim.

Check I89.1 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

  • acute lymphangitis (L03.-)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Chronic lymphangitis
  • Lymphangitis NOS
  • Subacute lymphangitis

Excludes1 inherited from the categories above I89.1

A category’s note binds every code beneath it.

Written on I89: Other noninfective disorders of lymphatic vessels and lymph nodes

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

Other codes that can never be billed with I89.1

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • L03.91Acute lymphangitis, unspecified

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

I89.1 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56775Billing and Coding: Magnetic Resonance Angiography

Alphabetic index entries that lead here

  • Lymphangitis
  • Gangrene, gangrenous›lymphangitis
  • Lymphangitis›chronic(any site)
  • Lymphangitis›subacute(any site)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under I89

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.