ICD-10-CM Codes
A00-B99 Certain infectious and parasitic diseases
A90-A99 Arthropod-borne viral fevers and viral hemorrhagic fevers
A93- Other arthropod-borne viral fevers, not elsewhere classified

2020 ICD-10-CM Diagnosis Code A93.2

Colorado tick fever

2016

2017

2018

2019

2020

Billable/Specific Code

A93.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2020 edition of ICD-10-CM A93.2 became effective on October 1, 2019.
This is the American ICD-10-CM version of A93.2 - other international versions of ICD-10 A93.2 may differ.

The following code(s) above A93.2 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 A93.2:

A00-B99
2020 ICD-10-CM Range A00-B99
Certain infectious and parasitic diseases
Includes
- diseases generally recognized as communicable or transmissible
Type 1 Excludes
- certain localized infections - see body system-related chapters
Type 2 Excludes
- carrier or suspected carrier of infectious disease (Z22.-)
- infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
- infectious and parasitic diseases specific to the perinatal period (P35-P39)
- influenza and other acute respiratory infections (J00-J22)
Use Additional
- code to identify resistance to antimicrobial drugs (Z16.-)
Certain infectious and parasitic diseases

Clinical Information

A febrile illness characterized by chills, aches, vomiting, leukopenia, and sometimes encephalitis. It is caused by the colorado tick fever virus, a reovirus transmitted by the tick dermacentor andersoni.

ICD-10-CM A93.2 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):

865 Viral illness with mcc
866 Viral illness without mcc

Convert A93.2 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

Diagnosis Index entries containing back-references to A93.2:

American
- mountain tick fever A93.2
Fever (inanition) (of unknown origin) (persistent) (with chills) (with rigor) R50.9
ICD-10-CM Diagnosis Code R50.9
Fever, unspecified
Applicable To
Fever NOS
Fever of unknown origin [FUO]
Fever with chills
Fever with rigors
Hyperpyrexia NOS
Persistent fever
Pyrexia NOS
- American
  - mountain A93.2 (tick)
- mountain - see also Brucellosis
  - tick A93.2 (American) (Colorado) (viral)
- tick
  - American mountain A93.2
  - Colorado A93.2
  - mountain A93.2
  - nonexanthematous A93.2
- Colorado tick A93.2 (virus)
- non-exanthematous tick A93.2
Mountain
- tick fever A93.2
Nonexanthematous tick fever A93.2

ICD-10-CM Codes Adjacent To A93.2

A92.31 …… with encephalitis

A92.32 …… with other neurologic manifestation

A92.39 …… with other complications

A92.4 Rift Valley fever

A92.5 Zika virus disease

A92.8 Other specified mosquito-borne viral fevers

A92.9 Mosquito-borne viral fever, unspecified

A93 Other arthropod-borne viral fevers, not elsewhere classified

A93.0 Oropouche virus disease

A93.1 Sandfly fever

A93.2 Colorado tick fever

A93.8 Other specified arthropod-borne viral fevers

A94 Unspecified arthropod-borne viral fever

A95 Yellow fever

A95.0 Sylvatic yellow fever

A95.1 Urban yellow fever

A95.9 Yellow fever, unspecified

A96 Arenaviral hemorrhagic fever

A96.0 Junin hemorrhagic fever

A96.1 Machupo hemorrhagic fever

A96.2 Lassa fever

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

2020 ICD-10-CM Diagnosis Code A93.2

Colorado tick fever

Certain infectious and parasitic diseases

Fever, unspecified