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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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2021 ICD-10-CM Diagnosis Code A77.49
2021 ICD-10-CM Diagnosis Code A77.49
Other ehrlichiosis
2016 2017 2018 2019 2020 2021 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 2021 edition of ICD-10-CM A77.49 became effective on October 1, 2020.
- 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
- Anaplasmosis, human A77.49
- Ehrlichiosis A77.40
ICD-10-CM Diagnosis Code A77.40
Ehrlichiosis, unspecified
2016 2017 2018 2019 2020 2021 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 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 Billable/Specific Code
- Ehrlichiosis A77.40
ICD-10-CM Diagnosis Code A77.40
Ehrlichiosis, unspecified
2016 2017 2018 2019 2020 2021 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
A79.89 Other specified rickettsioses
A79.9 Rickettsiosis, unspecified
Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.
