K91.85
Complications of intestinal pouch
Non-billable headerNot valid on its own. Use one of the more specific codes under it.
K91.85 is a non-billable ICD-10-CM code header for complications of intestinal pouch. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K91.850 Pouchitis and K91.858 Other complications of intestinal pouch. Its coding notes include 15 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Intraoperative and postprocedural complications are coded from the body system chapters unless the complication is specifically indexed to a T code.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Inherited from K91 Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
- 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)