2021

  1. ICD-10-CM Codes
    2. ›
  2. K00-K95 Diseases of the digestive system
    3. ›
  3. K50-K52 Noninfective enteritis and colitis
    4. ›
  4. K52- Other and unspecified noninfective gastroenteritis and colitis
    5. ›
  5. 2021 ICD-10-CM Diagnosis Code K52.81

2021 ICD-10-CM Diagnosis Code K52.81

Eosinophilic gastritis or gastroenteritis

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • K52.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM K52.81 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of K52.81 - other international versions of ICD-10 K52.81 may differ.
Applicable To
  • Eosinophilic enteritis
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 (K52.81) and the excluded code together.
  • eosinophilic esophagitis (
    ICD-10-CM Diagnosis Code K20.0

    Eosinophilic esophagitis

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    K20.0
    )
The following code(s) above K52.81 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 K52.81:
  • K00-K95
    2021 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
  • K50-K52
    2021 ICD-10-CM Range K50-K52

    Noninfective enteritis and colitis

    Includes
    • noninfective inflammatory bowel disease
    Type 1 Excludes
    Noninfective enteritis and colitis
Approximate Synonyms
  • Eosinophilic gastritis
  • Eosinophilic gastritis with hemorrhage
  • Eosinophilic gastroenteritis
  • Gastric hemorrhage due to eosinophilic gastritis
  • Gastritis, eosinophilic
ICD-10-CM K52.81 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
  • 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert K52.81 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
Code annotations containing back-references to K52.81:
  • Type 1 Excludes: K29
    ICD-10-CM Diagnosis Code K29

    Gastritis and duodenitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • eosinophilic gastritis or gastroenteritis (K52.81)
    • Zollinger-Ellison syndrome (E16.4)
  • Type 2 Excludes: K20
    , K52.2
    , K52.2
    ICD-10-CM Diagnosis Code K20

    Esophagitis

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • erosion of esophagus (K22.1-)
    • esophagitis with gastro-esophageal reflux disease (K21.0-)
    • reflux esophagitis (K21.0-)
    • ulcerative esophagitis (K22.1-)
    Type 2 Excludes
    • eosinophilic gastritis or gastroenteritis (K52.81)
    Use Additional
    • code to identify:
    • alcohol abuse and dependence (F10.-)
    ICD-10-CM Diagnosis Code K52.2

    Allergic and dietetic gastroenteritis and colitis

      2016 2017 - Converted to Parent Code 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Food hypersensitivity gastroenteritis or colitis
    Type 2 Excludes
    • allergic eosinophilic colitis (K52.82)
    • allergic eosinophilic esophagitis (K20.0)
    • allergic eosinophilic gastritis (K52.81)
    • allergic eosinophilic gastroenteritis (K52.81)
    • food protein-induced proctocolitis (K52.82)
    Use Additional
    ICD-10-CM Diagnosis Code K52.2

    Allergic and dietetic gastroenteritis and colitis

      2016 2017 - Converted to Parent Code 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Applicable To
    • Food hypersensitivity gastroenteritis or colitis
    Type 2 Excludes
    • allergic eosinophilic colitis (K52.82)
    • allergic eosinophilic esophagitis (K20.0)
    • allergic eosinophilic gastritis (K52.81)
    • allergic eosinophilic gastroenteritis (K52.81)
    • food protein-induced proctocolitis (K52.82)
    Use Additional

Diagnosis Index entries containing back-references to K52.81:
  • 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 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)
    • allergic K52.29
      ICD-10-CM Diagnosis Code K52.29

      Other allergic and dietetic gastroenteritis and colitis

        2017 - New Code 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Food hypersensitivity gastroenteritis or colitis
      • Immediate gastrointestinal hypersensitivity
      • with
        • eosinophilic gastritis or gastroenteritis K52.81
    • eosinophilic K52.81
  • Gastritis (simple) K29.70
    ICD-10-CM Diagnosis Code K29.70

    Gastritis, unspecified, without bleeding

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • eosinophilic K52.81
  • Gastroenteritis (acute) (chronic) (noninfectious) K52.9
    - see also Enteritis
    ICD-10-CM Diagnosis Code K52.9

    Noninfective gastroenteritis and colitis, unspecified

      2016 2017 2018 2019 2020 2021 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)
    • allergic K52.29
      ICD-10-CM Diagnosis Code K52.29

      Other allergic and dietetic gastroenteritis and colitis

        2017 - New Code 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Food hypersensitivity gastroenteritis or colitis
      • Immediate gastrointestinal hypersensitivity
      • with
        • eosinophilic gastritis or gastroenteritis K52.81
    • eosinophilic K52.81

ICD-10-CM Codes Adjacent To K52.81
K51.919 Ulcerative colitis, unspecified with unspecified complications
K52 Other and unspecified noninfective gastroenteritis and colitis
K52.0 Gastroenteritis and colitis due to radiation
K52.1 Toxic gastroenteritis and colitis
K52.2 Allergic and dietetic gastroenteritis and colitis
K52.21 Food protein-induced enterocolitis syndrome
K52.22 Food protein-induced enteropathy
K52.29 Other allergic and dietetic gastroenteritis and colitis
K52.3 Indeterminate colitis
K52.8 Other specified noninfective gastroenteritis and colitis
K52.81 Eosinophilic gastritis or gastroenteritis
K52.82 Eosinophilic colitis
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

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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