2019/2020

  1. ICD-10-CM Codes
    2. ›
  2. K00-K95 Diseases of the digestive system
    3. ›
  3. K55-K64 Other diseases of intestines
    4. ›
  4. K55- Vascular disorders of intestine
    5. ›

2020 ICD-10-CM Diagnosis Code K55.011

Focal (segmental) acute (reversible) ischemia of small intestine

    2017 - New Code 2018 2019 2020 Billable/Specific Code
  • K55.011 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Focal (segmental) acute ischemia of small intestine
  • The 2020 edition of ICD-10-CM K55.011 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K55.011 - other international versions of ICD-10 K55.011 may differ.
The following code(s) above K55.011 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 K55.011:
  • 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
  • K55
    ICD-10-CM Diagnosis Code K55

    Vascular disorders of intestine

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • necrotizing enterocolitis of newborn (P77.-)
    Vascular disorders of intestine
  • K55.0
    ICD-10-CM Diagnosis Code K55.0

    Acute vascular disorders of intestine

      2016 2017 - Converted to Parent Code 2018 2019 2020 Non-Billable/Non-Specific Code
    Applicable To
    • Infarction of appendices epiploicae
    • Mesenteric (artery) (vein) embolism
    • Mesenteric (artery) (vein) infarction
    • Mesenteric (artery) (vein) thrombosis
    Acute vascular disorders of intestine
ICD-10-CM K55.011 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 393 Other digestive system diagnoses with mcc
  • 394 Other digestive system diagnoses with cc
  • 395 Other digestive system diagnoses without cc/mcc
  • 791 Prematurity with major problems
  • 793 Full term neonate with major problems

Convert K55.011 to ICD-9-CM

Code History
  • 2017 (effective 10/1/2016): New code
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change

Diagnosis Index entries containing back-references to K55.011:
  • Ischemia, ischemic I99.8
    ICD-10-CM Diagnosis Code I99.8

    Other disorder of circulatory system

      2016 2017 2018 2019 2020 Billable/Specific Code
    • intestine (large) (small) (transient) K55.9
      ICD-10-CM Diagnosis Code K55.9

      Vascular disorder of intestine, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Ischemic colitis
      • Ischemic enteritis
      • Ischemic enterocolitis
      • acute K55.059
        ICD-10-CM Diagnosis Code K55.059

        Acute (reversible) ischemia of intestine, part and extent unspecified

          2017 - New Code 2018 2019 2020 Billable/Specific Code
        • small K55.019
          ICD-10-CM Diagnosis Code K55.019

          Acute (reversible) ischemia of small intestine, extent unspecified

            2017 - New Code 2018 2019 2020 Billable/Specific Code
          • focal K55.011
    • small bowel
      • acute K55.019
        ICD-10-CM Diagnosis Code K55.019

        Acute (reversible) ischemia of small intestine, extent unspecified

          2017 - New Code 2018 2019 2020 Billable/Specific Code
        • focal K55.011

ICD-10-CM Codes Adjacent To K55.011
K52.83 Microscopic colitis
K52.831 Collagenous colitis
K52.832 Lymphocytic colitis
K52.838 Other microscopic colitis
K52.839 …… unspecified
K52.89 Other specified noninfective gastroenteritis and colitis
K52.9 Noninfective gastroenteritis and colitis, unspecified
K55 Vascular disorders of intestine
K55.0 Acute vascular disorders of intestine
K55.01 Acute (reversible) ischemia of small intestine
K55.011 Focal (segmental) acute (reversible) ischemia of small intestine
K55.012 Diffuse acute (reversible) ischemia of small intestine
K55.019 …… extent unspecified
K55.02 Acute infarction of small intestine
K55.021 Focal (segmental) acute infarction of small intestine
K55.022 Diffuse acute infarction of small intestine
K55.029 …… extent unspecified
K55.03 Acute (reversible) ischemia of large intestine
K55.031 Focal (segmental) acute (reversible) ischemia of large intestine
K55.032 Diffuse acute (reversible) ischemia of large intestine
K55.039 …… extent unspecified

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

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