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ICD-10-CM Codes
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K00-K95
Diseases of the digestive system
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K55-K64
Other diseases of intestines
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K55-
Vascular disorders of intestine
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2022 ICD-10-CM Diagnosis Code K55.9
2022 ICD-10-CM Diagnosis Code K55.9
Vascular disorder of intestine, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- K55.9 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 K55.9 became effective on October 1, 2021.
- This is the American ICD-10-CM version of K55.9 - other international versions of ICD-10 K55.9 may differ.
Applicable To- Ischemic colitis
- Ischemic enteritis
- Ischemic enterocolitis
The following code(s) above
K55.9 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
K55.9:
- Ischemic colitis
- Vascular insufficiency of intestine
Clinical Information
- Inflammation of the colon due to colonic ischemia resulting from alterations in systemic circulation or local vasculature.
ICD-10-CM K55.9 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
- 393 Other digestive system diagnoses with mcc
- 394 Other digestive system diagnoses with cc
- 395 Other digestive system diagnoses without cc/mcc
Convert K55.9 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
- Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9 - see also Enteritis
ICD-10-CM Diagnosis Code K52.9
Noninfective gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Colitis NOS
- Enteritis NOS
- Gastroenteritis NOS
- Ileitis NOS
- Jejunitis NOS
- Sigmoiditis NOS
Type 1 Excludes- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
- Disorder (of) - see also Disease
- Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
ICD-10-CM Diagnosis Code K52.9
Noninfective gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Colitis NOS
- Enteritis NOS
- Gastroenteritis NOS
- Ileitis NOS
- Jejunitis NOS
- Sigmoiditis NOS
Type 1 Excludes- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
- Enterocolitis K52.9 - see also Enteritis
ICD-10-CM Diagnosis Code K52.9
Noninfective gastroenteritis and colitis, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Colitis NOS
- Enteritis NOS
- Gastroenteritis NOS
- Ileitis NOS
- Jejunitis NOS
- Sigmoiditis NOS
Type 1 Excludes- diarrhea NOS (R19.7)
- functional diarrhea (K59.1)
- infectious gastroenteritis and colitis NOS (A09)
- neonatal diarrhea (noninfective) (P78.3)
- psychogenic diarrhea (F45.8)
- Insufficiency, insufficient
- vascular I99.8
ICD-10-CM Diagnosis Code I99.8
Other disorder of circulatory system
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- Ischemia, ischemic I99.8
ICD-10-CM Diagnosis Code I99.8
Other disorder of circulatory system
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- Syndrome - see also Disease
ICD-10-CM Codes Adjacent To K55.9
K55.1 Chronic vascular disorders of intestine
K55.2 Angiodysplasia of colon
K55.3 Necrotizing enterocolitis
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
K56.4 Other impaction of intestine
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
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
