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ICD-10-CM 2027 diagnosis code

K77Liver disorders in diseases classified elsewhere

✓ Billable / specificManifestation — not principal

K77 is a valid, billable ICD-10-CM code for liver disorders in diseases classified elsewhere. 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 K77

K77 is the ICD-10-CM diagnosis code for liver disorders in diseases classified elsewhere. It belongs to 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.

Don't report K77 together with the conditions in its Excludes1 note: alcoholic hepatitis (K70.1-), alcoholic liver disease (K70.-), cytomegaloviral hepatitis (B25.1), herpesviral [herpes simplex] hepatitis (B00.81) and 6 more.

Code first underlying disease, such as: amyloidosis (E85.-), congenital syphilis (A50.0, A50.5), congenital toxoplasmosis (P37.1), infectious mononucleosis with liver disease (B27.0-B27.9 with fifth character 9) and 1 more.

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) and DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC, relative weight 0.6885), in MDC 07 (Diseases and Disorders of the Hepatobiliary System and Pancreas), 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 is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.

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 573.8 (other specified disorders of liver).

Coding notes

Excludes1Not coded here — never report together with this code
  • alcoholic hepatitis (K70.1-)
  • alcoholic liver disease (K70.-)
  • cytomegaloviral hepatitis (B25.1)
  • herpesviral [herpes simplex] hepatitis (B00.81)
  • mumps hepatitis (B26.81)
  • sarcoidosis with liver disease (D86.89)
  • secondary syphilis with liver disease (A51.45)
  • syphilis (late) with liver disease (A52.74)
  • toxoplasmosis (acquired) hepatitis (B58.1)
  • tuberculosis with liver disease (A18.83)
Code firstSequence the underlying condition first
  • underlying disease, such as:
  • amyloidosis (E85.-)
  • congenital syphilis (A50.0, A50.5)
  • congenital toxoplasmosis (P37.1)
  • infectious mononucleosis with liver disease (B27.0-B27.9 with fifth character 9)
  • schistosomiasis (B65.0-B65.9)

Notes that apply from higher levels

Instructions written at a parent level also apply to K77.

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

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.

ICD-9-CM equivalent

Converter →
  • 573.8Other specified disorders of liverapproximate

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 K77

Is K77 billable?

Yes. K77 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K77 be used as a principal diagnosis?

No. It is a manifestation code, so it describes the effect of an underlying disease and can't be the principal diagnosis. Code the underlying condition first.

Is K77 a CC or MCC?

No. K77 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does K77 group to?

K77 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) and MS-DRG 443 (Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCC). 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 K77?

The CMS General Equivalence Mappings map K77 to ICD-9-CM 573.8.