1. ICD-10-CM Codes
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2. K00-K95 Diseases of the digestive system
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3. K50-K52 Noninfective enteritis and colitis
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4. K52- Other and unspecified noninfective gastroenteritis and colitis
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2020 ICD-10-CM Diagnosis Code K52.81

Eosinophilic gastritis or gastroenteritis

2016 2017 2018 2019 2020 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 2020 edition of ICD-10-CM K52.81 became effective on October 1, 2019.
• This is the American ICD-10-CM version of K52.81 - other international versions of ICD-10 K52.81 may differ.

• Eosinophilic gastritis
• Eosinophilic gastritis with hemorrhage
• Eosinophilic gastroenteritis
• Gastric hemorrhage due to eosinophilic gastritis
• Gastritis, eosinophilic

• 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

• 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

• Type 1 Excludes: K29
  ICD-10-CM Diagnosis Code K29

  Gastritis and duodenitis

  2016 2017 2018 2019 2020 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 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 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

  • code to identify type of food allergy (Z91.01-, Z91.02-)
  ICD-10-CM Diagnosis Code K52.2

  Allergic and dietetic gastroenteritis and colitis

  2016 2017 - Converted to Parent Code 2018 2019 2020 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

  • code to identify type of food allergy (Z91.01-, Z91.02-)

• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
  ICD-10-CM Diagnosis Code K52.9

  Noninfective gastroenteritis and colitis, unspecified

  2016 2017 2018 2019 2020 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 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 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 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 Billable/Specific Code

    Applicable To

    • Food hypersensitivity gastroenteritis or colitis
    • Immediate gastrointestinal hypersensitivity
    • with
      • eosinophilic gastritis or gastroenteritis K52.81
  • eosinophilic K52.81

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