2021 ICD-10-CM Diagnosis Code A01.4

Paratyphoid fever, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • A01.4 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 A01.4 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of A01.4 - other international versions of ICD-10 A01.4 may differ.
Applicable To
  • Infection due to Salmonella paratyphi NOS
The following code(s) above A01.4 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 A01.4:
  • A00-B99
    2021 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
Approximate Synonyms
  • Paratyphoid fever
Clinical Information
  • A prolonged febrile illness commonly caused by several paratyphi serotypes of salmonella enterica. It is similar to typhoid fever but less severe.
ICD-10-CM A01.4 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 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 A01.4 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 A01.4:
  • Code First: M01
    ICD-10-CM Diagnosis Code M01

    Direct infections of joint in infectious and parasitic diseases classified elsewhere

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code First
    Type 1 Excludes

Diagnosis Index entries containing back-references to A01.4:
  • Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) M19.90
    ICD-10-CM Diagnosis Code M19.90

    Unspecified osteoarthritis, unspecified site

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Arthrosis NOS
    • Arthritis NOS
    • Osteoarthritis NOS
  • Cholecystitis K81.9
    ICD-10-CM Diagnosis Code K81.9

    Cholecystitis, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • paratyphoidal, current A01.4
  • 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 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
  • Schottmuller's disease A01.4

ICD-10-CM Codes Adjacent To A01.4
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
A02 Other salmonella infections
A02.0 Salmonella enteritis
A02.1 Salmonella sepsis
A02.2 Localized salmonella infections
A02.20 Localized salmonella infection, unspecified
A02.21 Salmonella meningitis
A02.22 Salmonella pneumonia
A02.23 Salmonella arthritis
A02.24 Salmonella osteomyelitis
A02.25 Salmonella pyelonephritis

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