All ICD10 Codes

K91

Non-Billable
ChapterK00–K95
Rankcategory
Official Description

Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

Use a more specific code (4 billable, 4 non-billable)
K91.0Vomiting following gastrointestinal surgeryK91.1Postgastric surgery syndromesK91.2Postsurgical malabsorption, not elsewhere classifiedK91.3Postprocedural intestinal obstructionhas subcodesK91.5Postcholecystectomy syndromeK91.6Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedurehas subcodesK91.7Accidental puncture and laceration of a digestive system organ or structure during a procedurehas subcodesK91.8Other intraoperative and postprocedural complications and disorders of digestive systemhas subcodes
Metadata & Insights
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here. Code separately if applicable.)
  • 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)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)
  • complications of artificial opening of digestive system (K94.-)
  • complications of bariatric procedures (K95.-)
  • gastrojejunal ulcer (K28.-)
  • postprocedural (radiation) retroperitoneal abscess (K68.11)
  • radiation colitis (K52.0)
  • radiation gastroenteritis (K52.0)
  • radiation proctitis (K62.7)

Clinical Hierarchy

BillableHas subcodes
CH11Diseases of the digestive system (K00-K95)
K90-K95Other diseases of the digestive system (K90-K95)
K91Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classifiedNot billable
K91.0Vomiting following gastrointestinal surgeryBillable
K91.1Postgastric surgery syndromesBillable
K91.2Postsurgical malabsorption, not elsewhere classifiedBillable
K91.3Postprocedural intestinal obstructionSubcodes
K91.5Postcholecystectomy syndromeBillable
K91.6Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedureSubcodes
K91.7Accidental puncture and laceration of a digestive system organ or structure during a procedureSubcodes
K91.8Other intraoperative and postprocedural complications and disorders of digestive systemSubcodes

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K91:

chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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