ICD-10-CM 2027
ICD-10 code for postoperative parotitis
Other postprocedural complications and disorders of digestive system
From the official ICD-10-CM alphabetic index entry “Parotitis, parotiditis (allergic)(nonspecific toxic) (purulent) (septic) (suppurative) › postoperative”. Page updated September 29, 2026.
About coding postoperative parotitis
The ICD-10-CM code for postoperative parotitis is K91.89 (Other postprocedural complications and disorders of digestive system).
Within K91.8, choose K91.89 (Other postprocedural complications and disorders of digestive system) only when documentation doesn't support a more specific option: other intraoperative complications of digestive system (K91.81), postprocedural hepatic failure (K91.82), postprocedural hepatorenal syndrome (K91.83), postprocedural hemorrhage of a digestive system organ or structure following a procedure (K91.84), complications of intestinal pouch (K91.85), retained cholelithiasis following cholecystectomy (K91.86) and postprocedural hematoma and seroma of a digestive system organ or structure following a procedure (K91.87).
The conditions in its Excludes2 note aren't part of K91.89, but may be coded alongside it if the patient has both: postprocedural retroperitoneal abscess (K68.11).
Use an additional code, if applicable, to further specify disorder.
Common questions about postoperative parotitis ICD-10 codes
What is the ICD-10 code for postoperative parotitis?
- K91.89 — Other postprocedural complications and disorders of digestive system.
Is K91.89 billable?
- Yes. K91.89 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K91.89 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K91.89 as a principal diagnosis.
Is K91.89 a CC or MCC?
- K91.89 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.