A21
Non-billableTularemia
Tularemia
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
- deer-fly fever
- infection due to Francisella tularensis
- rabbit fever
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
- certain localized infections - see body system-related chapters
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
Child Codes (7)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(30)
UMLS
- Deer fly feverC0041351
- Deerfly feverC0041351
- Francis' diseaseC0041351
- Francisella tularensis InfectionC0041351
- Francisella tularensis InfectionsC0041351
- Francisella tularensis infectionC0041351
- Infection by Francisella tularensisC0041351
- Infection, Francisella tularensisC0041351
- O'Hara's diseaseC0041351
- Ohara's diseaseC0041351
- Pahvant Valley feverC0041351
- Pahvant Valley plagueC0041351
- Rabbit feverC0041351
- TularaemiaC0041351
- TularemiaC0041351
- Tularemia (disorder)C0041351
- Tularemia, unspecifiedC0041351
- TularemiasC0041351
- Unspecified tularaemiaC0041351
- Unspecified tularemiaC0041351
- YatobyoC0041351
- deer-fly feverC0041351
- deerfly feverC0041351
- fever rabbitC0041351
- fever rabbitsC0041351
- infection due to Francisella tularensisC0041351
- rabbit feverC0041351
- tularaemiaC0041351
- tularemiaC0041351
- tularemiasC0041351
Frequently Asked Questions
What is the ICD-10 code for tularemia?
The ICD-10-CM code for tularemia is A21. The full clinical description is "Tularemia". A21 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code A21 mean?
ICD-10-CM code A21 represents “Tularemia”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a non-billable header code. Use a more specific child code for billing purposes.
Is A21 a billable code?
No, A21 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under A21.
What chapter is A21 in?
A21 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A21?
A21 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
What are the subcategories under A21?
A21 has 7 child codes, including: A21.0 (Ulceroglandular tularemia), A21.1 (Oculoglandular tularemia), A21.2 (Pulmonary tularemia), A21.3 (Gastrointestinal tularemia), and 3 more.
Are additional codes required with A21?
Yes, when using A21, also report: resistance to antimicrobial drugs (Z16.-).
What are the UMLS CUIs for A21?
A21 is linked to 1 UMLS Concept Unique Identifier: C0041351. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does A21 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like tularemia affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of A21?
A21 maps to the ICD-11 code: 1B94.Z (Tularaemia, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.