2022 ICD-10-CM Diagnosis Code A01.00

Typhoid fever, unspecified

    2016 2017 2018 2019 2020 2021 2022 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 2022 edition of ICD-10-CM A01.00 became effective on October 1, 2021.
  • This is the American ICD-10-CM version of A01.00 - other international versions of ICD-10 A01.00 may differ.
The following code(s) above A01.00 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 A01.00:
  • A00-B99
    2022 ICD-10-CM Range A00-B99

    Certain infectious and parasitic diseases

    Includes
    • diseases generally recognized as communicable or transmissible
    Type 1 Excludes
    • certain localized infections - see body system-related chapters
    Type 2 Excludes
    • carrier or suspected carrier of infectious disease (Z22.-)
    • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
    • infectious and parasitic diseases specific to the perinatal period (P35-P39)
    • influenza and other acute respiratory infections (J00-J22)
    Use Additional
    • code to identify resistance to antimicrobial drugs (Z16.-)
    Certain infectious and parasitic diseases
  • A01.0
    ICD-10-CM Diagnosis Code A01.0

    Typhoid fever

      2016 2017 2018 2019 2020 2021 2022 Non-Billable/Non-Specific Code
    Applicable To
    • Infection due to Salmonella typhi
    Typhoid fever
Approximate Synonyms
  • Typhoid fever
Clinical Information
  • 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.
ICD-10-CM A01.00 is grouped within Diagnostic Related Group(s) (MS-DRG v39.0):
  • 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

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
  • 2022 (effective 10/1/2021): No change

Diagnosis Index entries containing back-references to A01.00:
  • 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 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 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 Billable/Specific Code
    • Bacillus A49.9
      ICD-10-CM Diagnosis Code A49.9

      Bacterial infection, unspecified

        2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
      Type 1 Excludes
      • 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

ICD-10-CM Codes Adjacent To A01.00
A00 Cholera
A00.0 Cholera due to Vibrio cholerae 01, biovar cholerae
A00.1 Cholera due to Vibrio cholerae 01, biovar eltor
A00.9 Cholera, unspecified
A01 Typhoid and paratyphoid fevers
A01.0 Typhoid fever
A01.00 …… unspecified
A01.01 Typhoid meningitis
A01.02 …… with heart involvement
A01.03 Typhoid pneumonia
A01.04 Typhoid arthritis
A01.05 Typhoid osteomyelitis
A01.09 …… with other complications
A01.1 Paratyphoid fever A
A01.2 Paratyphoid fever B
A01.3 Paratyphoid fever C
A01.4 Paratyphoid fever, unspecified

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