K91.8 ICD-10-CA code: Other postprocedural disorders of digestive system, not elsewhere classified
K91.8 is the ICD-10-CA code for “Other postprocedural disorders of digestive system, not elsewhere classified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
K91.8Other postprocedural disorders of digestive system, not elsewhere classified
Short description: Oth postproc disrd digestive system NEC
ICD-10-CA · Canada · Also written K918
Index terms
Entries in CIHI’s alphabetical index that lead to K91.8. Searching the index by the condition the note names is how coders reach this code.
- Syndrome, afferent loop NEC
- Anastomosis, intestinal, complicated NEC
- Syndrome, gastrojejunal loop obstruction
- Syndrome, obstruction, gastrojejunal loop
- Stricture, rectum (sphincter), due to, irradiation
- Difficult, difficulty (in), mechanical, gastroduodenal stoma
- Disorder (of), digestive (system), postprocedural, specified NEC
- Complication, complications (from) (of), anastomosis (and bypass) NEC, esophagus
- Complication, complications (from) (of), anastomosis (and bypass) NEC, gastrointestinal
- Complication, complications (from) (of), gastrointestinal, postoperative, specified NEC
- Complication, complications (from) (of), medical procedure, digestive system, specified NEC
- Complication, complications (from) (of), medical procedure, gastrointestinal, specified NEC
- Complication, complications (from) (of), surgical procedure, digestive system, specified NEC
- Complication, complications (from) (of), surgical procedure, gastrointestinal, specified NEC
- Complication, complications (from) (of), anastomosis (and bypass) NEC, intestinal (internal) NEC
- Complication, complications (from) (of), surgical procedure, digestive system, functional disorder NEC
Notes for K91.8
As CIHI prints them, with any note K91.8 takes from the headings above it.
Includes
- Afferent loop syndromeGastrojejunal loop obstruction syndrome
Excludes
Conditions classified elsewhere.
- Gastrojejunal ulcer (K28.-)radiation:• colitis (K52.0)• gastroenteritis (K52.0)• proctitis (K62.7)From K91 Postprocedural disorders of digestive system, not elsewhere classified
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 11: Diseases of the digestive system (K00-K93)
Where K91.8 sits
- 1ChapterChapter 11: Diseases of the digestive system (K00-K93)
- 2Block K90-K93Other diseases of the digestive system
- 3Category K91Postprocedural disorders of digestive system, not elsewhere classified
- 4Valid code K91.8Other postprocedural disorders of digestive system, not elsewhere classified
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code K91.8 mean?
K91.8 is the ICD-10-CA code for “Other postprocedural disorders of digestive system, not elsewhere classified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is K91.8 in ICD-10-CA?
K91.8 sits under K91 Postprocedural disorders of digestive system, not elsewhere classified, within K90-K93 Other diseases of the digestive system, within Chapter 11: Diseases of the digestive system (K00-K93).
What coding notes apply to K91.8?
ICD-10-CA lists Includes, Excludes notes for K91.8, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.
Codes beside K91.8
View K91K91.0Vomiting following gastrointestinal surgeryK91.1Postgastric surgery syndromesK91.2Postsurgical malabsorption, not elsewhere classifiedK91.3Postoperative intestinal obstructionK91.4Colostomy and enterostomy malfunctionK91.5Postcholecystectomy syndromeK91.6Gastrostomy malfunctionK91.9Postprocedural disorder of digestive system, unspecified