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K75.1

K75.1: Phlebitis of portal vein

Billable / specific codeICD-10-CM

K75.1 is a billable, specific ICD-10-CM code for phlebitis of portal vein. It is valid for submission on a claim.

Check K75.1 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.

  • pylephlebitic liver abscess (K75.0)

Inclusion terms

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

  • Pylephlebitis

Excludes2 inherited from the categories above K75.1

Not part of this code, but both may be coded when both are present.

Written on K75: Other inflammatory liver diseases

  • toxic liver disease (K71.-)

Other codes that can never be billed with K75.1

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

Risk adjustment

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

Medicare coverage

K75.1 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56421Billing and Coding: CT of the Abdomen and Pelvis
  • A56697Billing and Coding: Non-Invasive Vascular Studies
  • A56758Billing and Coding: Non-Invasive Vascular Studies
  • A57361Billing and Coding: Monitored Anesthesia Care

Alphabetic index entries that lead here

  • Pylephlebitis
  • Pylethrombophlebitis
  • Pylethrombosis
  • Phlebitis›portal(vein)
  • Pyemia, pyemic›liver
  • Pyemia, pyemic›portal
  • Thrombophlebitis›portal(vein)

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under K75

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.