ICD-10-CM 2027 diagnosis code
K91.840Postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure
K91.840 is a valid, billable ICD-10-CM code for postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Postproc hemor of a dgstv sys org fol a dgstv sys procedure
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About K91.840
K91.840 is the ICD-10-CM diagnosis code for postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure. It belongs to category K91 (intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified), block K90-K95 (other diseases of the digestive system) and chapter 11 (diseases of the digestive system). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within K91.84 (postprocedural hemorrhage of a digestive system organ or structure following a procedure), K91.840 is specifically for postprocedural hemorrhage of a digestive system organ or structure following a digestive system procedure. Related codes cover other procedure (K91.841).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 919 (Complications of Treatment with MCC, relative weight 1.763), DRG 920 (Complications of Treatment with CC, relative weight 0.9975) and DRG 921 (Complications of Treatment without CC/MCC, relative weight 0.6722), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as 998.11 (hemorrhage complicating a procedure).
Notes that apply from higher levels
Instructions written at a parent level also apply to K91.840.
Broader instructions also apply from Chapter 11: Diseases of the digestive system.
Alphabetic index entries
2 entriesTerms in the official ICD-10-CM index that lead to K91.840.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 21 · Injuries, Poisonings and Toxic Effects of Drugs
ICD-9-CM equivalent
Converter →- 998.11Hemorrhage complicating a procedureapproximate
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2017 (effective 10/1/2016): Title revised — was “Postprocedural hemorrhage and hematoma of a digestive system organ or structure following a digestive system procedure”
Common questions about K91.840
Is K91.840 billable?
- Yes. K91.840 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K91.840 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K91.840 as a principal diagnosis.
Is K91.840 a CC or MCC?
- K91.840 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does K91.840 group to?
- K91.840 is used in the MS-DRG v44.0 logic for MS-DRG 919 (Complications of Treatment with MCC), MS-DRG 920 (Complications of Treatment with CC) and MS-DRG 921 (Complications of Treatment without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for K91.840?
- The CMS General Equivalence Mappings map K91.840 to ICD-9-CM 998.11.