K91.84 Postprocedural hemorrhage of a digestive system organ or structure following a procedure

ICD-10-CM K91.84: Postprocedural hemorrhage of a digestive system organ or structure following a procedure

ICD-10-CM code K91.84 identifies postprocedural hemorrhage of a digestive system organ or structure following a procedure. The terminology is active and classified under digestive system complications. Clinical discussions distinguish hemorrhage from hematoma, noting that hemorrhage indicates ongoing bleeding that usually requires urgent intervention to prevent life-threatening consequences. 1 2

Plain-language overview

Code K91.84 describes bleeding in a digestive system organ or structure after a patient has undergone a medical procedure, and the terminology record assigns it a semantic type of pathologic function. 1

What this code represents

The official label for K91.84 is postprocedural hemorrhage of a digestive system organ or structure following a procedure, and the concept is currently designated as an active terminology record without narrower child concepts. 1

Coding details

K91.84 is hierarchically nested under the parent concept K91.8 for other intraoperative and postprocedural complications and disorders of the digestive system, and it falls within Chapter 11 of the coding manual. 1 5

Clinical context

Clinical proposals differentiate postprocedural hemorrhage from hematoma, explaining that hemorrhage indicates ongoing bleeding that usually requires urgent intervention to prevent hypotension and other life-threatening consequences. 2

Postprocedural hematoma indicates that bleeding has stopped and clot has formed, meaning observation alone may be appropriate, whereas postprocedural hemorrhage is usually associated with some component of hematoma as extravasated blood clots. 2

Documentation considerations

The condition hematoma is considered a separate condition from hemorrhage and warrants another code, and the ICD-10-CM index entries show hematoma as a nonessential modifier in parentheses for postprocedural hemorrhage complications. 2

Coverage and utilization context

A Medicare billing and coding article references K91.841, postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure, as a code utilized within payer guidance. 4

What the sources add

While the official terminology record defines K91.84 as a single active concept, a clinical coordination proposal highlights that the code set loses specificity regarding hemorrhage versus hematoma, prompting proposals for paired alternatives. 1 2

A federal manual lists digestive system postprocedural hemorrhage and hematoma following either a digestive system procedure or other procedure, while a payer article specifically references the digestive procedure subcategory K91.841. 3 4

Sources

1. ICD-10-CM K91.84 terminology record — National Cancer Institute Enterprise Vocabulary Services; accessed 2026-07-27.
2. ICD-9-CM C&M March 2011 Diagnosis Agenda — cdc.gov; accessed 2026-07-27.
3. ICD-10-CM/PCS MS-DRGv33 Definitions Manual — cms.gov; accessed 2026-07-27.
4. Article - Billing and Coding: Diagnostic Abdominal Aortography and Renal Angiography (A56682) — cms.gov; accessed 2026-07-27.
5. Codigo. The #1 Billing Agency for Medical Practices — codigo.care; accessed 2026-07-27.