2027 ICD-10-CM Diagnosis Code K74.00Hepatic fibrosis, unspecified

ICD-10-CM Codes›K00–K95›K70-K77›K74

ICD-10-CM K74.00
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

K74.00 is a billable ICD-10-CM diagnosis code for hepatic fibrosis, unspecified. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 432 through 434. The code is not accepted as a principal diagnosis by the Medicare Code Editor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified liver disease.

Code Identity

ICD-10-CM Code
K74.00
Billable Status
Yes — Valid for Submission
Code Describes
Hepatic fibrosis, unspecified
Short Description
Hepatic fibrosis, unspecified
Same as the full description in the CMS dataset.
Parent Code
K74.0
Hepatic fibrosis

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK70-K77Diseases of liver
CategoryK74Fibrosis and cirrhosis of liver
This CodeK74.00Hepatic fibrosis, unspecified

Code EditsBilling

Medicare Code Editor checks that affect claim validity for K74.00.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Bleeding esophageal varices
  • Bleeding esophageal varices due to hepatic fibrosis
  • Boichis syndrome
  • Congenital hepatic fibrosis
  • Esophageal varices associated with another disorder
  • Fibrocystic kidney disease
  • Fibropolycystic disease of liver
  • Fibrosis of liver due to metabolic dysfunction-associated steatotic liver
  • Hepatic fibrosis
  • Hepatic schistosomiasis
  • Liver cyst
  • Neonatal diabetes, congenital hypothyroidism, congenital glaucoma, hepatic fibrosis, polycystic kidney syndrome
  • Nephronophthisis
  • Pericellular fibrosis of congenital syphilis
  • Periportal fibrosis
  • Portal fibrosis without cirrhosis
  • Septal fibrosis of liver
  • Symmer's pipe-stem fibrosis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to K74.00: its own notes plus those printed at K74.0, K74, block K70-K77, and Chapter 11. A note printed at a category, block or chapter applies to every code under it.

Excludes1

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

From K74 Fibrosis and cirrhosis of liver applies to 11 codes
  • alcoholic cirrhosis (of liver) (K70.3)
  • alcoholic fibrosis of liver (K70.2)
  • cardiac sclerosis of liver (K76.1)
  • cirrhosis (of liver) with toxic liver disease (K71.7)
  • congenital cirrhosis (of liver) (P78.81)
  • pigmentary cirrhosis (of liver) (E83.110)
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 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)

Code First

The underlying condition named in the note is sequenced before this code.

From K74.0 Hepatic fibrosis applies to 4 codes
  • underlying liver disease, such as:
  • nonalcoholic steatohepatitis (NASH) (K75.81)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

From K74 Fibrosis and cirrhosis of liver applies to 11 codes
  • if applicable, viral hepatitis (acute) (chronic) (B15-B19)

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

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name K74.00, its category, or a range that includes it.

Use Additional Code 1

These codes say to use an additional code from the note, and K74.00 is one of the codes named.

  • K75.81 Nonalcoholic steatohepatitis (NASH)
    code, if applicable, hepatic fibrosis (K74.0-) names K74.0-, which includes this code

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 DIG019
Other specified and unspecified liver disease
Default principal diagnosis: inpatient No · outpatient Yes

Clinical InformationClinical

  • Liver Fibrosis

    a condition in which the liver parenchyma is replaced by fibrous tissue. it may progress to cirrhosis of the liver.

Patient EducationClinical

Liver Diseases

Your liver is the largest organ inside your body. It helps your body digest food, store energy, and remove poisons.

Read the full article at MedlinePlus

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

Code History & ChangesHistory

Replacement K74.00 replaces the following previously assigned code(s):

  • K74.0 - Hepatic fibrosis
FY 2021AddedAdded to the ICD-10-CM code setEffective October 1, 2020.
FY 2022–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About K74.00Overview

What is the ICD-10 code for hepatic fibrosis, unspecified?

The ICD-10-CM code for hepatic fibrosis, unspecified is K74.00 (sometimes written as K7400). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is K74.00 (Hepatic fibrosis) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report hepatic fibrosis, unspecified on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does K74.00 group to?

On inpatient claims, hepatic fibrosis, unspecified maps to MS-DRG 433, 434, 432, with relative weights from 0.6247 to 1.9828 depending on complications. Higher weights mean higher Medicare reimbursement.

Can K74.00 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because hepatic fibrosis, unspecified describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

Can K74.00 be reported with K70.3?

Not as a rule. The Excludes1 note at K74, which applies to K74.00, lists "alcoholic cirrhosis (of liver) (K70.3)". 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).