K91.89 Other postprocedural complications and disorders of digestive system

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Excludes2 (not included here)

• postprocedural retroperitoneal abscess (K68.11)

Use additional code

• code, if applicable, to further specify disorder

Applies from K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified

Excludes2 (not included here)

• 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)

MS-DRG index

Defines the logic of DRG(s) 393-395 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 564.4 Other postoperative functional disorders (approximate)
• 997.49 Other digestive system complications (approximate)

Code annotations containing back-references to K91.89

Back-references to K91

• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-)")

Diagnosis Index entries for K91.89

• Anastomosis › intestinal › complicated NEC
• Complication (s) (from) (of) › anastomosis (and bypass) › intestinal (internal) NEC
• Complication (s) (from) (of) › gastrointestinal › postoperative › specified NEC
• Complication (s) (from) (of) › postprocedural › specified NEC › digestive
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) › functional › following gastrointestinal surgery
• Difficult, difficulty (in) › mechanical, gastroduodenal stoma
• Disorder (of) › intestine, intestinal › functional NEC › postoperative
• Ileus (bowel) (colon) (inhibitory) (intestine) › postoperative
• Parotitis, parotiditis (allergic)(nonspecific toxic) (purulent) (septic) (suppurative) › postoperative
• Parotitis, parotiditis (allergic)(nonspecific toxic) (purulent) (septic) (suppurative) › surgical
• Stricture › bile duct (common) (hepatic) › postoperative
• Stricture › rectum (sphincter) › due to › irradiation
• Syndrome › afferent loop NEC
• Syndrome › gastrojejunal loop obstruction

Nearby codes

• K91.87 Postprocedural hematoma and seroma of a digestive system organ or structure following a procedure
• 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 (this code)