1. ICD-10-CM Codes
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2. A00-B99
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3. A75-A79
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4. A75-
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5. 2023 ICD-10-CM Diagnosis Code A75.0

2023 ICD-10-CM Diagnosis Code A75.0

Epidemic louse-borne typhus fever due to Rickettsia prowazekii

2016 2017 2018 2019 2020 2021 2022 2023 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 2023 edition of ICD-10-CM A75.0 became effective on October 1, 2022.
• This is the American ICD-10-CM version of A75.0 - other international versions of ICD-10 A75.0 may differ.

• Louse-borne typhus
• Louse-borne typhus fever due to rickettsia prowazekii

• 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.

• 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

• 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

• Code First: I41
  ICD-10-CM Diagnosis Code I41

  Myocarditis in diseases classified elsewhere

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

  Code First

  • underlying disease, such as:
  • typhus (A75.0-A75.9)

  Type 1 Excludes

  • myocarditis (in):
  • Chagas' disease (chronic) (B57.2)
  • acute (B57.0)
  • coxsackie (virus) infection (B33.22)
  • diphtheritic (A36.81)
  • gonococcal (A54.83)
  • influenzal (J09.X9, J10.82, J11.82)
  • meningococcal (A39.52)
  • mumps (B26.82)
  • rheumatoid arthritis (M05.31)
  • sarcoid (D86.85)
  • syphilis (A52.06)
  • toxoplasmosis (B58.81)
  • tuberculous (A18.84)

• 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
  • 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 2021 2022 2023 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 2021 2022 2023 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 2021 2022 2023 Billable/Specific Code

  Applicable To

  • Typhus (fever) NOS
  • due to Rickettsia
    • prowazekii A75.0
  • exanthematicus SAI A75.0
  • classical A75.0
  • epidemic A75.0 (louse-borne)
  • exanthematic NEC A75.0
  • louse-borne A75.0

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