K77 — Liver disorders in diseases classified elsewhere
Is K77 billable?
Yes — K77 is billable for FY2027. K77 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. K77 may be submitted for encounters from October 1, 2026 through September 30, 2027.
K77 at a glance
| Code | K77 |
|---|---|
| Description | Liver disorders in diseases classified elsewhere |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
What Medicare edits apply to K77?
The Medicare Code Editor screens inpatient claims before they are grouped. These edits name K77 directly.
This code describes a manifestation of an underlying disease. The underlying condition must be sequenced before it, so it can never be the principal or first-listed diagnosis.
Which MS-DRGs does K77 group to?
K77 sits in MDC 07 and helps define the logic of 3 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 441Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with MCCmedical
- 442Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis with CCmedical
- 443Disorders of Liver Except Malignancy, Cirrhosis or Alcoholic Hepatitis without CC/MCCmedical
As a secondary diagnosis, K77 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is K77 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to K77. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Amyloidosis › liver (generalized) (primary)
- Hepatosplenomegaly › hyperlipemic
- Degeneration, degenerative › liverNEC › amyloid
- Disease, diseased › liver › glycogen storage
- Disorder › liver › malarial (of)
- Hepatitis › syphilitic › congenital
- Hepatitis › viral, virus › coxsackie
- Hypertension, hypertensive › portal › in (accelerated) (benign) (essential) (idiopathic) (malignant) (systemic)
- Infiltrate, infiltration › liver › glycogen
- Disease, diseased › liver › in › schistosomiasis
- Granuloma › hepatic NEC › in › berylliosis
- Hepatitis › in › toxoplasmosis › congenital
Excludes1 — never code together
The conditions below can never be reported together with K77 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- 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 first
The underlying condition below must be sequenced before K77. K77 describes a manifestation and cannot be the principal or first-listed diagnosis.
Excludes1 — never code together — inherited from K70-K77
The conditions below can never be reported together with K77 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- jaundice NOS (R17)
Excludes2 — not included here — inherited from Chapter 11
The conditions below are not part of K77, but a patient may have both at the same time. When documentation supports it, K77 and the excluded code may both 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)
Excludes2 — not included here — inherited from K70-K77
The conditions below are not part of K77, but a patient may have both at the same time. When documentation supports it, K77 and the excluded code may both be reported.
How long has K77 existed?
K77 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with K77?
ICD-10-CM declares these codes mutually exclusive with K77 — exactly one of each pair can be correct for a given encounter.