2027 ICD-10-CM Diagnosis Code K77Liver disorders in diseases classified elsewhere
ICD-10-CM Codes›K00–K95›K70-K77›K77
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
K77 is a billable ICD-10-CM diagnosis code for liver disorders in diseases classified elsewhere. 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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. The code is a manifestation code that cannot be reported as the principal diagnosis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified liver disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for K77.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Alpha-1-antitrypsin hepatitis
- Blastomycosis liver
- Disorder of liver co-occurrent and due to disorder of urea cycle
- Disorder of liver due to disorder of amino acid metabolism
- Disorder of liver due to disorder of mineral metabolism
- Fungal infection of liver
- Glycogen storage disease, hepatic form
- Hepatic amyloidosis
- Histoplasmosis liver
- Infection of liver caused by parasite
- Intestinal failure associated liver disease
- Liver disease co-occurrent and due to mitochondrial disorder
- Liver disease due to peroxisomal disease
- Sickle cell hepatopathy
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K77: its own notes plus those printed at 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.
- 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)
- 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.
- 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.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
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.
Convert K77 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K77Overview
What is the ICD-10 code for liver disorders in diseases classified elsewhere?
The ICD-10-CM code for liver disorders in diseases classified elsewhere is K77. It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K77 (Liver disorders in diseases classified elsewhere) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report liver disorders in diseases classified elsewhere on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K77 group to?
On inpatient claims, liver disorders in diseases classified elsewhere maps to MS-DRG 442, 441, 443, with relative weights from 0.6890 to 1.8226 depending on complications. Higher weights mean higher Medicare reimbursement.
Is K77 a CC or MCC?
CMS lists K77 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family.
Can K77 be a principal diagnosis?
No. This is a manifestation code: liver disorders in diseases classified elsewhere describes the manifestation of an underlying disease rather than the disease itself, so the underlying condition is sequenced first.
