Reserved for future guideline expansion
K91.89
Other postprocedural complications and disorders of digestive system
Billable FY2026 2025-10-01 → 2026-09-30
Exclusions 16 never code together
K91code
Excludes2
- complications of artificial opening of digestive system (K94.-)K94.-
- complications of bariatric procedures (K95.-)K95.-
- gastrojejunal ulcer (K28.-)K28.-
- postprocedural (radiation) retroperitoneal abscess (K68.11)K68.11
- radiation colitis (K52.0)K52.0
- radiation gastroenteritis (K52.0)K52.0
- radiation proctitis (K62.7)K62.7
K00-K95chapter
Excludes2
- certain conditions originating in the perinatal period (P04-P96)P04-P96
- certain infectious and parasitic diseases (A00-B99)A00-B99
- complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
- endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
- injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
- neoplasms (C00-D49)C00-D49
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94
Excludes2 — not included here, but the patient may have both. Code both when documented.
Instructional notes 1
K91.89code
Use additional code
- code, if applicable, to further specify disorder
Official Guidelines 1 names this code
ICD-10-CM Official Guidelines for Coding and Reporting, quoted in full. Published by CMS and NCHS; in the public domain.
Index entries leading here 9
- Syndrome — see also Disease
- Anastomosis
- Complication (s) (from) (of)
- Stricture — see also Stenosis
- Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
- Difficult, difficulty (in)
- mechanical, gastroduodenal stoma K91.89
- Disorder (of) — see also Disease
- Ileus (bowel) (colon) (inhibitory) (intestine) K56.7
- postoperative K91.89
- Parotitis, parotiditis (allergic)(nonspecific toxic) (purulent) (septic) (suppurative) — see also Sialoadenitis
Alongside this code 7 same parent — K91.8
K91.81 Other intraoperative complications of digestive system K91.82 Postprocedural hepatic failure K91.83 Postprocedural hepatorenal syndrome K91.84 Postproc hemorrhage of a dgstv sys org following a procedure category K91.85 Complications of intestinal pouch category K91.86 Retained cholelithiasis following cholecystectomy K91.87 Postproc hematoma and seroma of a dgstv sys org fol a proc category
Medications 5
1266 Digestive System Diseases drugs 147 Digestive System Neoplasms drugs 5 Digestive System Abnormalities drugs 41 Bipolar and Related Disorders drugs 10 Feeding and Eating Disorders drugs
MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.
Additional references
AHA Coding Clinic® Licence required
Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.