1. ICD-10-CM Codes
›
2. A00-B99
›
3. A20-A28
›
4. A21-
›
5. 2023 ICD-10-CM Diagnosis Code A21.9

2023 ICD-10-CM Diagnosis Code A21.9

Tularemia, unspecified

2016 2017 2018 2019 2020 2021 2022 2023 Billable/Specific Code

• A21.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• The 2023 edition of ICD-10-CM A21.9 became effective on October 1, 2022.
• This is the American ICD-10-CM version of A21.9 - other international versions of ICD-10 A21.9 may differ.

• Tularemia

• A plague-like disease of rodents, transmissible to man. It is caused by francisella tularensis and is characterized by fever, chills, headache, backache, and weakness.
• A serious gram-negative bacterial infection caused by francisella tularensis. It is transmitted to humans through bites from infected insects, inhaling airborne bacteria, handling infected animals, or consuming contaminated food or water. Signs and symptoms include skin ulcers, mouth sores, lymphadenopathy, sore throat, fever and pneumonia.
• Disease caused by francisella tularensis and transmitted to man from rodents through the bite of a deer fly, chrysops discalis, and other bloodsucking insects; symptoms consist of a prolonged fever and often swelling of the lymph nodes; rabbits are important reservoir hosts.

• 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 A21.9 to ICD-9-CM

• 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

• Tularemia A21.9

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