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  6. 2024 ICD-10-CM Code A79
Version 2024
Non-Billable Code

2024 ICD-10-CM Diagnosis Code A79

Other rickettsioses

ICD-10-CM Code:
A79
ICD-10 Code for:
Other rickettsioses
Is Billable?
Not Valid for Submission
Code Navigator:

Code Classification

  • Certain infectious and parasitic diseases
    (A00–B99)
    • Rickettsioses
      (A75-A79)
      • Other rickettsioses
        (A79)

A79 is a non-specific and non-billable diagnosis code code, consider using a code with a higher level of specificity for a diagnosis of other rickettsioses. The code is not specific and is NOT valid for the year 2024 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

Specific Coding Applicable to Other rickettsioses

Non-specific codes like A79 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10-CM codes with a higher level of specificity when coding for other rickettsioses:

  • Use A79.0 for Trench fever - BILLABLE CODE

  • Use A79.1 for Rickettsialpox due to Rickettsia akari - BILLABLE CODE

  • A79.8 for Other specified rickettsioses - NON-BILLABLE CODE

  • Use A79.81 for Rickettsiosis due to Ehrlichia sennetsu - BILLABLE CODE

  • Use A79.82 for Anaplasmosis [A. phagocytophilum] - BILLABLE CODE

  • Use A79.89 for Other specified rickettsioses - BILLABLE CODE

  • Use A79.9 for Rickettsiosis, unspecified - BILLABLE CODE

Patient Education


Bacterial Infections

Bacteria are living things that have only one cell. Under a microscope, they look like balls, rods, or spirals. They are so small that a line of 1,000 could fit across a pencil eraser. Most types of don't make you sick. Many types are helpful. Some of them help to digest food, destroy disease-causing cells, and give the body needed vitamins. Bacteria are also used in making healthy foods like yogurt and cheese.

But infectious bacteria can make you ill. They reproduce quickly in your body. Many give off chemicals called toxins, which can damage tissue and make you sick. Examples of bacteria that cause infections include Streptococcus, Staphylococcus, and E. coli.

Antibiotics are the usual treatment. When you take antibiotics, follow the directions carefully. Each time you take antibiotics, you increase the chances that bacteria in your body will learn to resist them causing antibiotic resistance. Later, you could get or spread an infection that those antibiotics cannot cure.

NIH: National Institute of Allergy and Infectious Diseases


[Learn More in MedlinePlus]

Code History

  • FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
  • FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
  • FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
  • FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.