1. ICD-10-CM Codes
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2. A00-B99 Certain infectious and parasitic diseases
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3. A00-A09 Intestinal infectious diseases
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4. A08- Viral and other specified intestinal infections
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2020 ICD-10-CM Diagnosis Code A08.8

Other specified intestinal infections

2016 2017 2018 2019 2020 Billable/Specific Code

• A08.8 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 A08.8 became effective on October 1, 2019.
• This is the American ICD-10-CM version of A08.8 - other international versions of ICD-10 A08.8 may differ.

• 391 Esophagitis, gastroenteritis and miscellaneous digestive disorders with mcc
• 392 Esophagitis, gastroenteritis and miscellaneous digestive disorders without mcc

Convert A08.8 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

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
  ICD-10-CM Diagnosis Code M19.90

  Unspecified osteoarthritis, unspecified site

  2016 2017 2018 2019 2020 Billable/Specific Code

  Applicable To

  • Arthrosis NOS
  • Arthritis NOS
  • Osteoarthritis NOS
  • in (due to)
    • enteritis, infectious NEC A09
      - see also category M01
      ICD-10-CM Diagnosis Code A09

      Infectious gastroenteritis and colitis, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code

      Applicable To

      • Infectious colitis NOS
      • Infectious enteritis NOS
      • Infectious gastroenteritis NOS

      Type 1 Excludes

      • colitis NOS (K52.9)
      • diarrhea NOS (R19.7)
      • enteritis NOS (K52.9)
      • gastroenteritis NOS (K52.9)
      • noninfective gastroenteritis and colitis, unspecified (K52.9)
      • specified organism NEC A08.8 - see also category M01
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
  ICD-10-CM Diagnosis Code R19.7

  Diarrhea, unspecified

  2016 2017 2018 2019 2020 Billable/Specific Code

  Applicable To

  • Diarrhea NOS

  Type 1 Excludes

  • functional diarrhea (K59.1)
  • neonatal diarrhea (P78.3)
  • psychogenic diarrhea (F45.8)
  • due to
    • specified organism NEC A08.8
• 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)
  • infectious NOS A09
    ICD-10-CM Diagnosis Code A09

    Infectious gastroenteritis and colitis, unspecified

    2016 2017 2018 2019 2020 Billable/Specific Code

    Applicable To

    • Infectious colitis NOS
    • Infectious enteritis NOS
    • Infectious gastroenteritis NOS

    Type 1 Excludes

    • colitis NOS (K52.9)
    • diarrhea NOS (R19.7)
    • enteritis NOS (K52.9)
    • gastroenteritis NOS (K52.9)
    • noninfective gastroenteritis and colitis, unspecified (K52.9)
    • specified organism NEC A08.8
• Infection, infected, infective (opportunistic) B99.9
  ICD-10-CM Diagnosis Code B99.9

  Unspecified infectious disease

  2016 2017 2018 2019 2020 Billable/Specific Code
  • intestine, intestinal - see Enteritis, infectious
    • specified NEC A08.8

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