ICD-10-CM Codes
K00-K95
K90-K95
K91-
2023 ICD-10-CM Diagnosis Code K91

2023 ICD-10-CM Diagnosis Code K91

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

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

K91 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
Short description: Intraop and postproc comp and disorders of dgstv sys, NEC
The 2023 edition of ICD-10-CM K91 became effective on October 1, 2022.
This is the American ICD-10-CM version of K91 - other international versions of ICD-10 K91 may differ.

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (K91) and the excluded code together.

complications of artificial opening of digestive system (
ICD-10-CM Diagnosis Code K94
- K94 Complications of artificial openings of the d...
  - K94.0 Colostomy complications
    - K94.00 Colostomy complication, unspecified
    - K94.01 Colostomy hemorrhage
    - K94.02 Colostomy infection
    - K94.03 Colostomy malfunction
    - K94.09 Other complications of colostomy
  - K94.1 Enterostomy complications
    - K94.10 Enterostomy complication, unspecified
    - K94.11 Enterostomy hemorrhage
    - K94.12 Enterostomy infection
    - K94.13 Enterostomy malfunction
    - K94.19 Other complications of enterostomy
  - K94.2 Gastrostomy complications
    - K94.20 Gastrostomy complication, unspecified
    - K94.21 Gastrostomy hemorrhage
    - K94.22 Gastrostomy infection
    - K94.23 Gastrostomy malfunction
    - K94.29 Other complications of gastrostomy
  - K94.3 Esophagostomy complications
    - K94.30 …… unspecified
    - K94.31 Esophagostomy hemorrhage
    - K94.32 Esophagostomy infection
    - K94.33 Esophagostomy malfunction
    - K94.39 Other complications of esophagostomy
K94.-
)
complications of bariatric procedures (
ICD-10-CM Diagnosis Code K95
- K95 Complications of bariatric procedures
  - K95.0 Complications of gastric band procedure
    - K95.01 Infection due to gastric band procedure
    - K95.09 Other complications of gastric band procedure...
  - K95.8 Complications of other bariatric procedure
    - K95.81 Infection due to other bariatric procedure
    - K95.89 Other complications of other bariatric proced...
K95.-
)
gastrojejunal ulcer (
ICD-10-CM Diagnosis Code K28
- K28 Gastrojejunal ulcer
  - K28.0 Acute gastrojejunal ulcer with hemorrhage
  - K28.1 Acute gastrojejunal ulcer with perforation
  - K28.2 Acute gastrojejunal ulcer with both hemorrhag...
  - K28.3 Acute gastrojejunal ulcer without hemorrhage ...
  - K28.4 Chronic or unspecified gastrojejunal ulcer wi...
  - K28.5 Chronic or unspecified gastrojejunal ulcer wi...
  - K28.6 Chronic or unspecified gastrojejunal ulcer wi...
  - K28.7 Chronic gastrojejunal ulcer without hemorrhag...
  - K28.9 Gastrojejunal ulcer, unspecified as acute or ...
K28.-
)
postprocedural (radiation) retroperitoneal abscess (
ICD-10-CM Diagnosis Code K68.11
Postprocedural retroperitoneal abscess
Type 2 Excludes
- infection following procedure (T81.4-)
K68.11
)
radiation colitis (
ICD-10-CM Diagnosis Code K52.0
Gastroenteritis and colitis due to radiation
K52.0
)
radiation gastroenteritis (
ICD-10-CM Diagnosis Code K52.0
Gastroenteritis and colitis due to radiation
K52.0
)
radiation proctitis (
ICD-10-CM Diagnosis Code K62.7
Radiation proctitis
Use Additional
- code to identify the type of radiation (W88.-)
- or radiation therapy (Y84.2)
K62.7
)

The following code(s) above K91 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to K91:

K00-K95
2023 ICD-10-CM Range K00-K95
Diseases of the digestive system
Type 2 Excludes
- 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)
Diseases of the digestive system

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to K91:

Type 2 Excludes: T81

ICD-10-CM Diagnosis Code T81
Complications of procedures, not elsewhere classified
Type 2 Excludes
- complications following immunization (T88.0-T88.1)
- complications following infusion, transfusion and therapeutic injection (T80.-)
- complications of transplanted organs and tissue (T86.-)
- specified complications classified elsewhere, such as:
- complication of prosthetic devices, implants and grafts (T82-T85)
- dermatitis due to drugs and medicaments (L23.3, L24.4, L25.1, L27.0-L27.1)
- endosseous dental implant failure (M27.6-)
- floppy iris syndrome (IFIS) (intraoperative) H21.81
- 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.-)
- ostomy complications (J95.0-, K94.-, N99.5-)
- plateau iris syndrome (post-iridectomy) (postprocedural) H21.82
- poisoning and toxic effects of drugs and chemicals (T36-T65 with fifth or sixth character 1-4 or 6)
Use Additional
- code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5)

ICD-10-CM Codes Adjacent To K91

K90.1 Tropical sprue

K90.2 Blind loop syndrome, not elsewhere classified

K90.3 Pancreatic steatorrhea

K90.4 Other malabsorption due to intolerance

K90.41 Non-celiac gluten sensitivity

K90.49 Malabsorption due to intolerance, not elsewhere classified

K90.8 Other intestinal malabsorption

K90.81 Whipple's disease

K90.89 Other intestinal malabsorption

K90.9 Intestinal malabsorption, unspecified

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

K91.0 Vomiting following gastrointestinal surgery

K91.1 Postgastric surgery syndromes

K91.2 Postsurgical malabsorption, not elsewhere classified

K91.3 Postprocedural intestinal obstruction

K91.30 …… unspecified as to partial versus complete

K91.31 Postprocedural partial intestinal obstruction

K91.32 Postprocedural complete intestinal obstruction

K91.5 Postcholecystectomy syndrome

K91.6 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a procedure

K91.61 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating a digestive system procedure

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code K91

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

Postprocedural retroperitoneal abscess

Gastroenteritis and colitis due to radiation

Gastroenteritis and colitis due to radiation

Radiation proctitis

Diseases of the digestive system

Complications of procedures, not elsewhere classified