2027 ICD-10-CM Diagnosis Code K80.20Calculus of gallbladder without cholecystitis without obstruction
ICD-10-CM Codes›K00–K95›K80-K87›K80
- Billable — Valid for Submission
- Not Chronic
K80.20 is a billable ICD-10-CM diagnosis code for calculus of gallbladder without cholecystitis without obstruction. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 444 through 446. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Biliary tract disease.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Biliary calculus
- Calculus of gallbladder without cholecystitis or cholangitis
- Cholangitis co-occurrent and due to calculus of gallbladder
- Cholelithiasis without obstruction
- Cholesterol calculus of gallbladder
- Chronic pancreatitis due to gallbladder calculus
- Gallbladder calculus during pregnancy
- Gallbladder calculus in mother complicating childbirth
- Gallstone
- Impacted gallstone of gallbladder
- Low phospholipid associated cholelithiasis
- Pigment calculus of gallbladder
- Postpartum gallbladder calculus
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K80.20: its own notes plus those printed at K80 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.
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)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name K80.20, its category, or a range that includes it.
Applicable To 1
These notes mention K80.20.
Excludes1 4
These codes carry an Excludes1 note naming K80.20: they are not reported together with it, unless the two conditions are unrelated.
- K81 Cholecystitischolecystitis with cholelithiasis (K80.-) names K80.-, which includes this code
- K82.0 Obstruction of gallbladderobstruction of gallbladder with cholelithiasis (K80.-) names K80.-, which includes this code
- K82.4 Cholesterolosis of gallbladdercholesterolosis of gallbladder with cholelithiasis (K80.-) names K80.-, which includes this code
- K83.1 Obstruction of bile ductobstruction of bile duct with cholelithiasis (K80.-) names K80.-, which includes this code
Use Additional Code 6
These codes say to use an additional code from the note, and K80.20 is one of the codes named.
- D57.09 Hb-SS disease with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, which includes this code
- D57.218 Sickle-cell/Hb-C disease with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, which includes this code
- D57.418 Sickle-cell thalassemia, unspecified, with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, which includes this code
- D57.438 Sickle-cell thalassemia beta zero with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, which includes this code
- D57.458 Sickle-cell thalassemia beta plus with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, which includes this code
- D57.818 Other sickle-cell disorders with crisis with other specified complicationcholelithiasis (K80.-) names K80.-, 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.
Clinical InformationClinical
Cholelithiasis
presence or formation of gallstones in the biliary tract, usually in the gallbladder (cholecystolithiasis) or the common bile duct (choledocholithiasis).
Patient EducationClinical
Gallstones
Your gallbladder is a pear-shaped organ under your liver. It stores bile, a fluid made by your liver to digest fat. As your stomach and intestines digest food, your gallbladder releases bile through a tube called the common bile duct. The duct connects your gallbladder and liver to your small intestine.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K80.20 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K80.20Overview
What is the ICD-10 code for calculus of gallbladder without cholecystitis without obstruction?
The ICD-10-CM code for calculus of gallbladder without cholecystitis without obstruction is K80.20 (sometimes written as K8020). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K80.20 (Calculus of gallbladder without cholecystitis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report calculus of gallbladder without cholecystitis without obstruction on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K80.20 group to?
When calculus of gallbladder without cholecystitis without obstruction is the principal diagnosis on an inpatient stay, it groups to MS-DRG 444, 445, 446, with relative weights from 0.8121 to 1.6662 depending on complications. Higher weights mean higher Medicare reimbursement.
Can K80.20 be reported with K91.86?
Not as a rule. The Excludes1 note at K80, which applies to K80.20, lists "retained cholelithiasis following cholecystectomy (K91.86)". 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).
What is the ICD-9 equivalent of K80.20?
Under the General Equivalence Mappings, calculus of gallbladder without cholecystitis without obstruction converts to ICD-9-CM 574.20 (cholelithiasis NOS). The mapping is approximate, so confirm the match fits the documentation.
