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ICD-10-CM Codes
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A00-B99
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A75-A79
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A79-
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2023 ICD-10-CM Diagnosis Code A79.9
2023 ICD-10-CM Diagnosis Code A79.9
Rickettsiosis, unspecified
2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code
- A79.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2023 edition of ICD-10-CM A79.9 became effective on October 1, 2022.
- This is the American ICD-10-CM version of A79.9 - other international versions of ICD-10 A79.9 may differ.
Applicable To- Rickettsial infection NOS
The following code(s) above
A79.9 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
A79.9:
- Disease caused by rickettsiae
- Rickettsial infection
- Rickettsiosis, tickborne
- Tick-borne rickettsiosis
Clinical Information
- Gram negative bacterial infection with the bacteria in the rickettsiales order.
- Infections by the genus rickettsia.
ICD-10-CM A79.9 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):
- 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 A79.9 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
- 2023 (effective 10/1/2022): No change
Code annotations containing back-references to A79.9:
ICD-10-CM Codes Adjacent To A79.9
A77.8 Other spotted fevers
A77.9 Spotted fever, unspecified
A79.1 Rickettsialpox due to Rickettsia akari
A79.8 Other specified rickettsioses
A79.81 Rickettsiosis due to Ehrlichia sennetsu
A79.82 Anaplasmosis [A. phagocytophilum]
A79.89 Other specified rickettsioses
A79.9
Rickettsiosis, unspecified
A80.0 Acute paralytic poliomyelitis, vaccine-associated
A80.1 Acute paralytic poliomyelitis, wild virus, imported
A80.2 Acute paralytic poliomyelitis, wild virus, indigenous
A80.3 Acute paralytic poliomyelitis, other and unspecified
A80.30 Acute paralytic poliomyelitis, unspecified
A80.39 Other acute paralytic poliomyelitis
A80.4 Acute nonparalytic poliomyelitis
A80.9 Acute poliomyelitis, unspecified
A81 Atypical virus infections of central nervous system
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
