2022 ICD-10-CM Diagnosis Code K56.1


    2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
  • K56.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2022 edition of ICD-10-CM K56.1 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of K56.1 - other international versions of ICD-10 K56.1 may differ.
Applicable To
  • Intussusception or invagination of bowel
  • Intussusception or invagination of colon
  • Intussusception or invagination of intestine
  • Intussusception or invagination of rectum
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 (K56.1) and the excluded code together.
  • intussusception of appendix (
    ICD-10-CM Diagnosis Code K38.8

    Other specified diseases of appendix

      2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
    Applicable To
    • Intussusception of appendix
The following code(s) above K56.1 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 K56.1:
  • K00-K95
    2022 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
  • K56
    ICD-10-CM Diagnosis Code K56

    Paralytic ileus and intestinal obstruction without hernia

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • congenital stricture or stenosis of intestine (Q41-Q42)
    • cystic fibrosis with meconium ileus (E84.11)
    • ischemic stricture of intestine (K55.1)
    • meconium ileus NOS (P76.0)
    • neonatal intestinal obstructions classifiable to P76.-
    • obstruction of duodenum (K31.5)
    • postprocedural intestinal obstruction (K91.3-)
    Type 2 Excludes
    • stenosis of anus or rectum (K62.4)
    Paralytic ileus and intestinal obstruction without hernia
Approximate Synonyms
  • Intussusception of intestine
Clinical Information
  • A form of intestinal obstruction caused by the prolapse of a part of the intestine into the adjoining intestinal lumen. There are four types: colic, involving segments of the large intestine; enteric, involving only the small intestine; ileocecal, in which the ileocecal valve prolapses into the cecum, drawing the ileum along with it; and ileocolic, in which the ileum prolapses through the ileocecal valve into the colon.
ICD-10-CM K56.1 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 388 Gastrointestinal obstruction with mcc
  • 389 Gastrointestinal obstruction with cc
  • 390 Gastrointestinal obstruction without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert K56.1 to ICD-9-CM

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

Diagnosis Index entries containing back-references to K56.1:

ICD-10-CM Codes Adjacent To K56.1
K55.21 …… with hemorrhage
K55.3 Necrotizing enterocolitis
K55.30 …… unspecified
K55.31 Stage 1 necrotizing enterocolitis
K55.32 Stage 2 necrotizing enterocolitis
K55.33 Stage 3 necrotizing enterocolitis
K55.8 Other vascular disorders of intestine
K55.9 Vascular disorder of intestine, unspecified
K56 Paralytic ileus and intestinal obstruction without hernia
K56.0 Paralytic ileus
K56.1 Intussusception
K56.2 Volvulus
K56.3 Gallstone ileus
K56.4 Other impaction of intestine
K56.41 Fecal impaction
K56.49 Other impaction of intestine
K56.5 Intestinal adhesions [bands] with obstruction (postinfection)
K56.50 Intestinal adhesions [bands], unspecified as to partial versus complete obstruction
K56.51 Intestinal adhesions [bands], with partial obstruction
K56.52 Intestinal adhesions [bands] with complete obstruction
K56.6 Other and unspecified intestinal obstruction

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