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ICD-10-CM 2027 diagnosis code

K75.2Nonspecific reactive hepatitis

✓ Billable / specific

K75.2 is a valid, billable ICD-10-CM code for nonspecific reactive hepatitis. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About K75.2

K75.2 is the ICD-10-CM diagnosis code for nonspecific reactive hepatitis. It belongs to category K75 (other inflammatory liver diseases), block K70-K77 (diseases of liver) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within K75 (other inflammatory liver diseases), K75.2 is specifically for nonspecific reactive hepatitis. Related codes cover abscess of liver (K75.0), phlebitis of portal vein (K75.1), granulomatous hepatitis, not elsewhere classified (K75.3), autoimmune hepatitis (K75.4), other specified inflammatory liver diseases (K75.8) and inflammatory liver disease, unspecified (K75.9).

Don't report K75.2 together with the conditions in its Excludes1 note: acute or subacute hepatitis (K72.0-), chronic hepatitis NEC (K73.-) and viral hepatitis (B15-B19).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC, relative weight 1.8219), DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC, relative weight 0.9602), DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), DRG 791 (Prematurity with Major Problems, relative weight 4.1075) and DRG 793 (Full Term Neonate with Major Problems, relative weight 4.2195), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 573.3 (hepatitis, unspecified).

Coding notes

Excludes1Not coded here — never report together with this code
  • acute or subacute hepatitis (K72.0-)
  • chronic hepatitis NEC (K73.-)
  • viral hepatitis (B15-B19)

Notes that apply from higher levels

Instructions written at a parent level also apply to K75.2.

› From K75 Other inflammatory liver diseases
Excludes2
  • toxic liver disease (K71.-)

Broader instructions also apply from K70-K77 Diseases of liver and Chapter 11: Diseases of the digestive system.

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to K75.2.

Codes whose notes reference K75.2

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

MDC 15 · Newborns and Other Neonates with Conditions Originating in the Perinatal Period

ICD-9-CM equivalent

Converter →
  • 573.3Hepatitis, unspecifiedapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about K75.2

Is K75.2 billable?

Yes. K75.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K75.2 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K75.2 as a principal diagnosis.

Is K75.2 a CC or MCC?

No. K75.2 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K75.2 group to?

K75.2 is used in the MS-DRG v44.0 logic for MS-DRG 441 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCC), MS-DRG 442 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CC), MS-DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC), MS-DRG 791 (Prematurity with Major Problems) and MS-DRG 793 (Full Term Neonate with Major Problems). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for K75.2?

The CMS General Equivalence Mappings map K75.2 to ICD-9-CM 573.3.