2027 ICD-10-CM Diagnosis Code K75.81Nonalcoholic steatohepatitis (NASH)

ICD-10-CM Codes›K00–K95›K70-K77›K75

ICD-10-CM K75.81
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K75.81 is a billable ICD-10-CM diagnosis code for nonalcoholic steatohepatitis (NASH). It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 441 through 443, 791, 793. Coders also document this condition as metabolic dysfunction-associated steatohepatitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Noninfectious hepatitis.

Code Identity

ICD-10-CM Code
K75.81
Billable Status
Yes — Valid for Submission
Code Describes
Nonalcoholic steatohepatitis (NASH)
Short Description
Nonalcoholic steatohepatitis (NASH)
Same as the full description in the CMS dataset.
Parent Code
Other specified inflammatory liver diseases

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK70-K77Diseases of liver
CategoryK75Other inflammatory liver diseases
This CodeK75.81Nonalcoholic steatohepatitis (NASH)

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Metabolic dysfunction-associated steatohepatitis
  • Metabolic dysfunction-associated steatotic liver disease
  • Steatohepatitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K75.81: its own notes plus those printed at K75, block K70-K77, and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Metabolic dysfunction-associated steatohepatitis (MASH)

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Block K70-K77 Diseases of liver applies to 65 codes
  • jaundice NOS (R17)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From K75 Other inflammatory liver diseases applies to 8 codes
  • toxic liver disease (K71.-)
From Block K70-K77 Diseases of liver applies to 65 codes
From Chapter 11 (K00-K95) Diseases of the digestive system applies to 863 codes
  • 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)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

  • code, if applicable, hepatic fibrosis (K74.0-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K75.81, its category, or a range that includes it.

Excludes1 1

These codes carry an Excludes1 note naming K75.81: they are not reported together with it, unless the two conditions are unrelated.

  • K76.0 Fatty (change of) liver, not elsewhere classified
    nonalcoholic steatohepatitis (NASH) (K75.81)

Code First 1

These codes say to code first a condition named in the note, and K75.81 is one of the conditions named.

  • K74.0 Hepatic fibrosis
    nonalcoholic steatohepatitis (NASH) (K75.81)

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR DIG023
Noninfectious hepatitis
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Steatohepatitis

    inflammation of the liver related to lipid accumulation in fatty liver.

Patient EducationClinical

Steatotic Liver Disease

Your liver is the largest organ inside your body. It helps you digest food, store energy, and remove harmful substances (toxins). Steatotic liver disease, formerly called fatty liver disease, happens when too much fat builds up in your liver. It's typical to have some fat in your liver cells, but too much can be a problem.

The full article covers:

  • What is steatotic liver disease?
  • What is metabolic dysfunction-associated steatotic liver disease (MASLD)?
  • What is alcohol-associated liver disease (ALD)?
  • Who is more likely to develop steatotic liver disease?
  • What are the symptoms of steatotic liver disease?
  • How is steatotic liver disease diagnosed?
  • What are the treatments for steatotic liver disease?
  • What are some lifestyle changes that can help with steatotic liver disease?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert K75.81 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
571.8 Chronic liver dis NEC
Approximate The match is approximate rather than exact.
ICD-9-CM
573.3 Hepatitis NOS
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K75.81Overview

What is the ICD-10 code for nonalcoholic steatohepatitis (NASH)?

The ICD-10-CM code for nonalcoholic steatohepatitis (NASH) is K75.81 (sometimes written as K7581). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K75.81 (Other specified inflammatory liver diseases) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report nonalcoholic steatohepatitis (NASH) on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K75.81 group to?

When nonalcoholic steatohepatitis (NASH) is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, 442, 441, 443, with relative weights from 0.6890 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.

Can K75.81 be reported with R17?

Not as a rule. The Excludes1 note at block K70-K77, which applies to K75.81, lists "jaundice NOS (R17)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).

Does K75.81 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code, if applicable, hepatic fibrosis (K74.0-). The additional code is reported after K75.81.