2026 ICD-10-CM Diagnosis Code K75.9Inflammatory liver disease, unspecified
ICD-10-CM Codes›K00–K95›K70-K77›K75
- Billable — Valid for Submission
- Chronic Condition
K75.9 is a billable ICD-10-CM diagnosis code for inflammatory liver disease, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 441 through 443. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified liver disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Copper storage associated hepatitis
- Disorder of liver due to disorder of mineral metabolism
- Hepatic coma due to hepatitis
- Hepatic schistosomiasis
- Idiopathic hepatitis in infancy
- Infection of liver and spleen caused by Schistosoma mansoni
- Infection of spleen
- Inflammatory disease of liver
- Radiation hepatitis
- Schistosoma mansoni infection
- Splenitis
- Viral arthritis co-occurrent with hepatitis
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Hepatitis NOS
Type 1 Excludes
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Disease, diseased - See Also: Syndrome;
- liver (chronic) (organic) - K76.9
- inflammatory - K75.9
- Hepatitis - K75.9
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Disease, diseased
- liver (chronic) (organic)
- inflammatory
- Hepatitis
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Schistosoma Mansoni Infection
an infection that is caused by schistosoma mansoni.Splenitis
inflammation of the spleen.
Patient EducationClinical
Hepatitis
Hepatitis is inflammation of the liver. Inflammation is swelling that happens when tissues of the body are injured or infected. It can damage your liver. This swelling and damage can affect how well your liver functions.
The full article covers:
- What is hepatitis?
- What causes hepatitis?
- How is viral hepatitis spread?
- Who is at risk for hepatitis?
- What are the symptoms of hepatitis?
- What other problems can hepatitis cause?
- How is hepatitis diagnosed?
- What are the treatments for hepatitis?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K75.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K75.9Overview
Is K75.9 (Other inflammatory liver diseases) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report inflammatory liver disease, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does K75.9 group to?
When inflammatory liver disease, unspecified is the principal diagnosis on an inpatient stay, it groups to MS-DRG 441, 442, 443, with relative weights from 0.6997 to 1.7947 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of K75.9?
Under the General Equivalence Mappings, inflammatory liver disease, unspecified converts to ICD-9-CM 573.3 (hepatitis NOS). The mapping is approximate, so confirm the match fits the documentation.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
