AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2021 Issue 4; ICD-10-CM New/Revised Codes
Anaplasmosis
Subcategory A79.8 Other specified rickettsioses, was expanded and code A79.82, Anaplasmosis [A. phagocytophilum], has been created to specifically identify this disease.Anaplasmosis is a tick-borne disease caused by the bite of an infected tick, mostly the blacklegged tick or deer tick (lxodes scapularis) and the western blacklegged tick (lxodes pacificus). It is important to note Ixodes ticks are commonly coinfected with other organisms and can transmit Lyme disease, Babesia, Ehrlichia, Rickettsia, and Powassan virus. In rare cases, anaplasmosis can spread by blood transfusions. Early signs and symptoms usually occur one to five days after an infected tick...
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Article Overview
This article covers the ICD-10-CM update related to anaplasmosis, including why the diagnosis is being coded more specifically and how the change supports awareness and public health tracking. It also discusses anaplasmosis as a tick-borne illness, its general signs and risks, and includes a brief coding-oriented scenario that places the topic in the context of related tick-borne diagnoses. The content is most relevant to coders, billing professionals, CDI staff, clinicians, and public health teams working with infectious disease documentation.
Why This Topic Matters
Accurate identification of anaplasmosis supports more specific ICD-10-CM reporting, better data capture, and improved tracking of tick-borne disease patterns.
What You Will Learn
- How the article frames the ICD-10-CM update for anaplasmosis
- The general clinical context and public health importance of the disease
- How the topic is presented in relation to a coding scenario involving tick-borne illness
- What types of coding resources or documentation issues are highlighted by the article
Who Should Read This
- Medical coders
- Coding auditors
- Clinical documentation integrity specialists
- Billing staff
- Clinicians
- Public health analysts
Codes Discussed
Code Ranges Discussed
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