All ICD10 Codes
Chapter 11

K00–K95: Diseases of the Digestive System

Diseases of the Digestive System diagnostic classification updated for 2026.

Chapter 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)
All CodesBillable Only
Internal Codes
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  • K90.83—

    Intestinal failure

  • K90.89—

    Other intestinal malabsorption

  • K90.9—

    Intestinal malabsorption, unspecified

  • K91.0—

    Vomiting following gastrointestinal surgery

  • K91.1—

    Postgastric surgery syndromes

  • K91.2—

    Postsurgical malabsorption, not elsewhere classified

  • K91.30—

    Postprocedural intestinal obstruction, unspecified as to partial versus complete

  • K91.31—

    Postprocedural partial intestinal obstruction

  • K91.32—

    Postprocedural complete intestinal obstruction

  • K91.5—

    Postcholecystectomy syndrome

  • K91.61—

    Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure

  • K91.62—

    Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure

  • K91.71—

    Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure

  • K91.72—

    Accidental puncture and laceration of a digestive system organ or structure during other procedure

  • K91.81—

    Other intraoperative complications of digestive system

  • K91.82—

    Postprocedural hepatic failure

  • K91.83—

    Postprocedural hepatorenal syndrome

  • K91.840—

    Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure

  • K91.841—

    Postprocedural hemorrhage of a digestive system organ or structure following other procedure

  • K91.850—

    Pouchitis

  • K91.858—

    Other complications of intestinal pouch

  • K91.86—

    Retained cholelithiasis following cholecystectomy

  • K91.870—

    Postprocedural hematoma of a digestive system organ or structure following a digestive system procedure

  • K91.871—

    Postprocedural hematoma of a digestive system organ or structure following other procedure

  • K91.872—

    Postprocedural seroma of a digestive system organ or structure following a digestive system procedure

  • K91.873—

    Postprocedural seroma of a digestive system organ or structure following other procedure

  • K91.89—

    Other postprocedural complications and disorders of digestive system

  • K92.0—

    Hematemesis

  • K92.1—

    Melena

  • K92.2—

    Gastrointestinal hemorrhage, unspecified

  • K92.81—

    Gastrointestinal mucositis (ulcerative)

  • K92.89—

    Other specified diseases of the digestive system

  • K92.9—

    Disease of digestive system, unspecified

  • K94.00—

    Colostomy complication, unspecified

  • K94.01—

    Colostomy hemorrhage

  • K94.02—

    Colostomy infection

  • K94.03—

    Colostomy malfunction

  • K94.09—

    Other complications of colostomy

  • K94.10—

    Enterostomy complication, unspecified

  • K94.11—

    Enterostomy hemorrhage

  • K94.12—

    Enterostomy infection

  • K94.13—

    Enterostomy malfunction

  • K94.19—

    Other complications of enterostomy

  • K94.20—

    Gastrostomy complication, unspecified

  • K94.21—

    Gastrostomy hemorrhage

  • K94.22—

    Gastrostomy infection

  • K94.23—

    Gastrostomy malfunction

  • K94.29—

    Other complications of gastrostomy

  • K94.30—

    Esophagostomy complications, unspecified

  • K94.31—

    Esophagostomy hemorrhage

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