2020 ICD-10-CM Diagnosis Code K91.31

Postprocedural partial intestinal obstruction

    2018 - New Code 2019 2020 Billable/Specific Code
  • K91.31 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM K91.31 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K91.31 - other international versions of ICD-10 K91.31 may differ.
Applicable To
  • Postprocedural incomplete intestinal obstruction
The following code(s) above K91.31 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 K91.31:
  • K00-K95
    2020 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
  • K91
    ICD-10-CM Diagnosis Code K91

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

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • complications of artificial opening of digestive system (K94.-)
    • complications of bariatric procedures (K95.-)
    • gastrojejunal ulcer (K28.-)
    • postprocedural (radiation) retroperitoneal abscess (K68.11)
    • radiation colitis (K52.0)
    • radiation gastroenteritis (K52.0)
    • radiation proctitis (K62.7)
    Intraoperative and postprocedural complications and disorders of digestive system, not elsewhere classified
ICD-10-CM K91.31 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 388 G.i. Obstruction with mcc
  • 389 G.i. Obstruction with cc
  • 390 G.i. Obstruction without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert K91.31 to ICD-9-CM

Code History
  • 2018 (effective 10/1/2017): New code
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to K91.31:
  • Obstruction, obstructed, obstructive
    • intestine K56.609
      ICD-10-CM Diagnosis Code K56.609

      Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction

        2018 - New Code 2019 2020 Billable/Specific Code
      Applicable To
      • Intestinal obstruction NOS
      • postoperative K91.30
        ICD-10-CM Diagnosis Code K91.30

        Postprocedural intestinal obstruction, unspecified as to partial versus complete

          2018 - New Code 2019 2020 Billable/Specific Code
        Applicable To
        • Postprocedural intestinal obstruction NOS
        • incomplete K91.31
        • partial K91.31

ICD-10-CM Codes Adjacent To K91.31
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
K91.62 Intraoperative hemorrhage and hematoma of a digestive system organ or structure complicating other procedure
K91.7 Accidental puncture and laceration of a digestive system organ or structure during a procedure
K91.71 Accidental puncture and laceration of a digestive system organ or structure during a digestive system procedure
K91.72 Accidental puncture and laceration of a digestive system organ or structure during other procedure
K91.8 Other intraoperative and postprocedural complications and disorders of digestive system
K91.81 Other intraoperative complications of digestive system

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