2027 ICD-10-CM Diagnosis Code K91.5Postcholecystectomy syndrome
ICD-10-CM Codes›K00–K95›K90-K95›K91
- Billable — Valid for Submission
- Not Chronic
K91.5 is a billable ICD-10-CM diagnosis code for postcholecystectomy syndrome. 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. Coders also document this condition as cystic duct stump syndrome. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Biliary tract disease and Postprocedural or postoperative digestive system complication.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Cystic duct stump syndrome
- Non-infective diarrhea
- Postcholecystectomy diarrhea
- Postcholecystectomy syndrome
- Post-surgical malabsorption
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K91.5: its own notes plus those printed at K91 and Chapter 11. A note printed at a category, block or chapter applies to every code under it.
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 K91.5, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming K91.5: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 1
These codes carry an Excludes2 note naming K91.5: its condition is not part of those codes, and both may be reported when the patient has both.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Syndrome See Also: Disease;
cystic duct stump K91.5
postcholecystectomy K91.5
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Postcholecystectomy Syndrome
abdominal symptoms after removal of the gallbladder. the common postoperative symptoms are often the same as those present before the operation, such as colic, bloating, nausea, and vomiting. there is pain on palpation of the right upper quadrant and sometimes jaundice. the term is often used, inaccurately, to describe such postoperative symptoms not due to gallbladder removal.
Patient EducationClinical
After Surgery
After any operation, you'll have some side effects. There is usually some pain with surgery. There may also be swelling and soreness around the area that the surgeon cut. Your surgeon can tell you which side effects to expect.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K91.5 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K91.5Overview
What is the ICD-10 code for postcholecystectomy syndrome?
The ICD-10-CM code for postcholecystectomy syndrome is K91.5 (sometimes written as K915). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K91.5 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report postcholecystectomy syndrome on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K91.5 group to?
When postcholecystectomy syndrome 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.
What is the ICD-9 equivalent of K91.5?
Under the General Equivalence Mappings, postcholecystectomy syndrome converts to ICD-9-CM 576.0 (postcholecystectomy synd). The mapping is a direct match.
