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ICD-10-CM Codes
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A00-B99
Certain infectious and parasitic diseases
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A75-A79
Rickettsioses
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A77-
Spotted fever [tick-borne rickettsioses]
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2022 ICD-10-CM Diagnosis Code A77.49
2022 ICD-10-CM Diagnosis Code A77.49
Other ehrlichiosis
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- A77.49 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
- The 2022 edition of ICD-10-CM A77.49 became effective on October 1, 2021.
- This is the American ICD-10-CM version of A77.49 - other international versions of ICD-10 A77.49 may differ.
Applicable To- Ehrlichiosis due to E. ewingii
- Ehrlichiosis due to E. muris euclairensis
The following code(s) above
A77.49 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
A77.49:
- 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 A77.49 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
- Anaplasmosis [A. phagocytophilum] (transfusion transmitted) A79.82
ICD-10-CM Diagnosis Code A79.82
Anaplasmosis [A. phagocytophilum]
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
Applicable To- Transfusion transmitted A. phagocytophilum
- Ehrlichiosis A77.40
ICD-10-CM Diagnosis Code A77.40
Ehrlichiosis, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- due to
- E. ewingii A77.49
- E. muris euclairensis A77.49
- specified organism NEC A77.49
- 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 Billable/Specific Code
Applicable To- Fever NOS
- Fever of unknown origin [FUO]
- Fever with chills
- Fever with rigors
- Hyperpyrexia NOS
- Persistent fever
- Pyrexia NOS
- spotted A77.9
ICD-10-CM Diagnosis Code A77.9
Spotted fever, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- Ehrlichiosis A77.40
ICD-10-CM Diagnosis Code A77.40
Ehrlichiosis, unspecified
2016 2017 2018 2019 2020 2021 2022 Billable/Specific Code
- due to
- specified organism NEC A77.49
ICD-10-CM Codes Adjacent To A77.49
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
A77.41 …… chafeensis [E. chafeensis]
A77.49
Other ehrlichiosis
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
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
