2019 ICD-10-CM Diagnosis Code A75.3

Typhus fever due to Rickettsia tsutsugamushi

    2016 2017 2018 2019 Billable/Specific Code
  • A75.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2019 edition of ICD-10-CM A75.3 became effective on October 1, 2018.
  • This is the American ICD-10-CM version of A75.3 - other international versions of ICD-10 A75.3 may differ.
Applicable To
  • Scrub (mite-borne) typhus
  • Tsutsugamushi fever
The following code(s) above A75.3 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 A75.3:
  • A00-B99
    2019 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 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • rickettsiosis due to Ehrlichia sennetsu (A79.81)
    Typhus fever
Approximate Synonyms
  • Scrub typhus
  • Typhus, scrub
Clinical Information
  • An acute infectious disease caused by orientia tsutsugamushi. It is limited to eastern and southeastern asia, india, northern australia, and the adjacent islands. Characteristics include the formation of a primary cutaneous lesion at the site of the bite of an infected mite, fever lasting about two weeks, and a maculopapular rash.
ICD-10-CM A75.3 is grouped within Diagnostic Related Group(s) (MS-DRG v36.0):
  • 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 A75.3 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

Diagnosis Index entries containing back-references to A75.3:
  • Disease, diseased - see also Syndrome
    • akamushi A75.3 (scrub typhus)
    • island A75.3 (scrub typhus)
    • Kedani A75.3 (scrub typhus)
    • shimamushi A75.3 (scrub typhus)
    • tsutsugamushi A75.3
  • 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 Billable/Specific Code
    Applicable To
    • Fever NOS
    • Fever of unknown origin [FUO]
    • Fever with chills
    • Fever with rigors
    • Hyperpyrexia NOS
    • Persistent fever
    • Pyrexia NOS
    • Japanese river A75.3
    • kedani A75.3
    • Sumatran mite A75.3
    • tsutsugamushi A75.3
  • Infection, infected, infective (opportunistic) B99.9
    ICD-10-CM Diagnosis Code B99.9

    Unspecified infectious disease

      2016 2017 2018 2019 Billable/Specific Code
    • typhus A75.9
      ICD-10-CM Diagnosis Code A75.9

      Typhus fever, unspecified

        2016 2017 2018 2019 Billable/Specific Code
      Applicable To
      • Typhus (fever) NOS
      • mite-borne A75.3
  • Japanese
    • river fever A75.3
  • Kedani fever A75.3
  • Sumatran mite fever A75.3
  • Tsutsugamushi A75.3 (disease) (fever)
  • Typhus (fever) A75.9
    ICD-10-CM Diagnosis Code A75.9

    Typhus fever, unspecified

      2016 2017 2018 2019 Billable/Specific Code
    Applicable To
    • Typhus (fever) NOS
    • due to Rickettsia
      • tsutsugamushi A75.3
    • mite-borne A75.3
    • scrub A75.3 (China) (India) (Malaysia) (New Guinea)
    • tropical A75.3 (mite-borne)

ICD-10-CM Codes Adjacent To A75.3
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
A77.40 …… unspecified
A77.41 …… chafeensis [E. chafeensis]
A77.49 Other ehrlichiosis

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