K91.1
✓ Billable
Postgastric surgery syndromes
ICD-10-CM · FY2026 · Diseases of the Digestive System
Code
K91.1
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Diseases of the Digestive System
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code K91.1?
ICD-10-CM code K91.1 represents Postgastric surgery syndromes. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.
Is K91.1 billable?
Yes. K91.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is K91.1 in?
K91.1 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.
Related codes in the K91 category
K91
Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
Non-billable
K91.0
Vomiting following gastrointestinal surgery
Billable
K91.2
Postsurgical malabsorption, not elsewhere classified
Billable
K91.3
Postprocedural intestinal obstruction
Non-billable
K91.5
Postcholecystectomy syndrome
Billable
K91.6
Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure
Non-billable
K91.7
Accidental puncture and laceration of a digestive system organ or structure during a procedure
Non-billable
K91.8
Other intraoperative and postprocedural complications and disorders of digestive system
Non-billable
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