2020 ICD-10-CM Diagnosis Code A75.0

Epidemic louse-borne typhus fever due to Rickettsia prowazekii

    2016 2017 2018 2019 2020 Billable/Specific Code
  • A75.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • Short description: Epidemic louse-borne typhus fever d/t Rickettsia prowazekii
  • The 2020 edition of ICD-10-CM A75.0 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of A75.0 - other international versions of ICD-10 A75.0 may differ.
Applicable To
  • Classical typhus (fever)
  • Epidemic (louse-borne) typhus
The following code(s) above A75.0 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 A75.0:
  • A00-B99
    2020 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
  • A75
    ICD-10-CM Diagnosis Code A75

    Typhus fever

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • rickettsiosis due to Ehrlichia sennetsu (A79.81)
    Typhus fever
Approximate Synonyms
  • Louse-borne typhus
  • Louse-borne typhus fever due to rickettsia prowazekii
Clinical Information
  • A gram-negative bacterial infection caused by rickettsia prowazekii. It is spread by lice infected with the bacteria. Signs and symptoms include sudden headache, generalized muscle pain, malaise, and macular skin lesions. The infection may affect the central nervous system causing encephalitis.
  • The classic form of typhus, caused by rickettsia prowazekii, which is transmitted from man to man by the louse pediculus humanus corporis. This disease is characterized by the sudden onset of intense headache, malaise, and generalized myalgia followed by the formation of a macular skin eruption and vascular and neurologic disturbances.
ICD-10-CM A75.0 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 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 A75.0 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
Code annotations containing back-references to A75.0:
  • Code First: I41
    ICD-10-CM Diagnosis Code I41

    Myocarditis in diseases classified elsewhere

      2016 2017 2018 2019 2020 Billable/Specific Code Manifestation Code
    Code First
    Type 1 Excludes

Diagnosis Index entries containing back-references to A75.0:
  • 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 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS
    • famine A75.0
  • Hildenbrand's disease A75.0
  • Myocarditis (with arteriosclerosis)(chronic)(fibroid) (interstitial) (old) (progressive) (senile) I51.4
    ICD-10-CM Diagnosis Code I51.4

    Myocarditis, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Chronic (interstitial) myocarditis
    • Myocardial fibrosis
    • Myocarditis NOS
    Type 1 Excludes
    • acute or subacute myocarditis (I40.-)
    • in (due to)
      • epidemic louse-borne typhus A75.0
  • Tabardillo A75.9
    ICD-10-CM Diagnosis Code A75.9

    Typhus fever, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Typhus (fever) NOS
    • louse-borne A75.0
  • Typhus (fever) A75.9
    ICD-10-CM Diagnosis Code A75.9

    Typhus fever, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Typhus (fever) NOS

ICD-10-CM Codes Adjacent To A75.0
A71.0 Initial stage of trachoma
A71.1 Active stage of trachoma
A71.9 Trachoma, unspecified
A74 Other diseases caused by chlamydiae
A74.0 Chlamydial conjunctivitis
A74.8 Other chlamydial diseases
A74.81 Chlamydial peritonitis
A74.89 Other chlamydial diseases
A74.9 Chlamydial infection, unspecified
A75 Typhus fever
A75.0 Epidemic louse-borne typhus fever due to Rickettsia prowazekii
A75.1 Recrudescent typhus [Brill's disease]
A75.2 Typhus fever due to Rickettsia typhi
A75.3 Typhus fever due to Rickettsia tsutsugamushi
A75.9 Typhus fever, unspecified
A77 Spotted fever [tick-borne rickettsioses]
A77.0 Spotted fever due to Rickettsia rickettsii
A77.1 Spotted fever due to Rickettsia conorii
A77.2 Spotted fever due to Rickettsia siberica
A77.3 Spotted fever due to Rickettsia australis
A77.4 Ehrlichiosis

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