1. ICD-10-CM Codes
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2. A00-B99
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3. A00-A09
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4. A01-
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5. 2023 ICD-10-CM Diagnosis Code A01.00

2023 ICD-10-CM Diagnosis Code A01.00

Typhoid fever, unspecified

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• A01.00 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM A01.00 became effective on October 1, 2022.
• This is the American ICD-10-CM version of A01.00 - other international versions of ICD-10 A01.00 may differ.

• Typhoid fever

• A bacterial infectious disorder contracted by consumption of food or drink contaminated with salmonella typhi. This disorder is common in developing countries and can be treated with antibiotics.
• Acute systemic febrile infection caused by salmonella typhi.
• An acute systemic febrile infection caused by salmonella typhi, a serotype of salmonella enterica.

• 867 Other infectious and parasitic diseases diagnoses with mcc
• 868 Other infectious and parasitic diseases diagnoses with cc
• 869 Other infectious and parasitic diseases diagnoses without cc/mcc

Convert A01.00 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
• 2021 (effective 10/1/2020): No change
• 2022 (effective 10/1/2021): No change
• 2023 (effective 10/1/2022): No change

• Eberth's disease A01.00 (typhoid fever)
• 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 2023 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)
  • typhosa A01.00
• Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
  ICD-10-CM Diagnosis Code R50.9

  Fever, unspecified

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Fever NOS
  • Fever of unknown origin [FUO]
  • Fever with chills
  • Fever with rigors
  • Hyperpyrexia NOS
  • Persistent fever
  • Pyrexia NOS
  • typhoid (abortive) (hemorrhagic) (intermittent) (malignant) A01.00
  • enteric A01.00
  • gastroenteric A01.00
  • typhogastric A01.00
• Infection, infected, infective (opportunistic) B99.9
  ICD-10-CM Diagnosis Code B99.9

  Unspecified infectious disease

  2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
  • Bacillus A49.9
    ICD-10-CM Diagnosis Code A49.9

    Bacterial infection, unspecified

    2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

    Type 1 Excludes

    • bacteremia NOS (R78.81)
    • typhosa A01.00
  • Bacterium
    • typhosum A01.00
  • Eberthella typhosa A01.00
• Typhoid (abortive) (ambulant) (any site) (clinical) (fever) (hemorrhagic) (infection) (intermittent) (malignant) (rheumatic) (Widal negative) A01.00
• Typhomania A01.00

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