2023 ICD-10-CM Diagnosis Code A77

Spotted fever [tick-borne rickettsioses]

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

A77 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM A77 became effective on October 1, 2022.
This is the American ICD-10-CM version of A77 - other international versions of ICD-10 A77 may differ.

The following code(s) above A77 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

that may be applicable to A77:

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

ICD-10-CM Codes Adjacent To A77

A74.8 Other chlamydial diseases

A74.81 Chlamydial peritonitis

A74.89 Other chlamydial diseases

A74.9 Chlamydial infection, unspecified

A75 Typhus fever

A75.0 Epidemic louse-borne typhus fever due to Rickettsia prowazekii

A75.1 Recrudescent typhus [Brill's disease]

A75.2 Typhus fever due to Rickettsia typhi

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

A77.4 Ehrlichiosis

A77.40 …… unspecified

A77.41 …… chafeensis [E. chafeensis]

A77.49 Other ehrlichiosis

A77.8 Other spotted fevers

A77.9 Spotted fever, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.