K75.1 — Phlebitis of portal vein
Is K75.1 billable?
Yes — K75.1 is billable for FY2027. K75.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K75.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K75.1 at a glance
| Code | K75.1 |
|---|---|
| Description | Phlebitis of portal vein |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does K75.1 group to?
K75.1 sits in MDC 07 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 441Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCCmedical
- 442Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CCmedical
- 443Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCCmedical
As a secondary diagnosis, K75.1 is a major complication or comorbidity (MCC), which can move a stay into a higher-paying DRG.
How is K75.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K75.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Pylephlebitis
- Pylethrombophlebitis
- Pylethrombosis
- Phlebitis › portal (infective) (pyemic) (septic) (suppurative)
- Pyemia, pyemic › liver (fever) (infection) (purulent)
- Pyemia, pyemic › portal (fever) (infection) (purulent)
- Thrombophlebitis › portal
Excludes1 — never code together
The conditions below can never be reported together with K75.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- pylephlebitic liver abscess (K75.0)
Inclusion terms
Alternative wording in documentation that is classified to K75.1.
- Pylephlebitis
Excludes1 — never code together — inherited from K70-K77
The conditions below can never be reported together with K75.1 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- jaundice NOS (R17)
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K75.1, but a patient may have both at the same time. When documentation supports it, K75.1 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from K70-K77
The conditions below are not part of K75.1, but a patient may have both at the same time. When documentation supports it, K75.1 and the excluded code may both be reported.
Excludes2 — not included here — inherited from K75
The conditions below are not part of K75.1, but a patient may have both at the same time. When documentation supports it, K75.1 and the excluded code may both be reported.
- toxic liver disease (K71.-)
How long has K75.1 existed?
K75.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with K75.1?
ICD-10-CM declares these codes mutually exclusive with K75.1 — exactly one of each pair can be correct for a given encounter.