A21.9
BillableTularemia, unspecified
Tularemia, unspecified
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
Related Codes(6)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(68)
SNOMED CT
- Deer fly fever19265001
- Deerfly fever19265001
- Francis' disease19265001
- Infection by Francisella tularensis19265001
- O'Hara's disease19265001
- Ohara's disease19265001
- Pahvant Valley fever19265001
- Pahvant Valley plague19265001
- Rabbit fever19265001
- Tularaemia19265001
- Tularemia19265001
- Yatobyo19265001
- Francisella infection721734000
- Infection caused by Francisella721734000
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
Clinical Terms
- Pahvant Valley fever
- Unspecified tularemia
- Tularemia (disorder)
- tularemias
- tularaemia
- infection due to Francisella tularensis
- Unspecified tularaemia
- rabbit fever
- Deer fly fever
- Deerfly fever
- O'Hara's disease
- Yatobyo
- Francisella infection
- Francis' disease
- deer-fly fever
- Infection, Francisella tularensis
- Pahvant Valley plague
- Francisella tularensis infection
- Francisella tularensis Infections
- fever rabbits
- Ohara's disease
- fever rabbit
- Infection by Francisella tularensis
- Infection caused by Francisella
Frequently Asked Questions
What is the ICD-10 code for tularemia, unspecified?
The ICD-10-CM code for tularemia, unspecified is A21.9. The full clinical description is "Tularemia, unspecified". A21.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code A21.9 mean?
ICD-10-CM code A21.9 represents “Tularemia, unspecified”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.
Is A21.9 a billable code?
Yes, A21.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is A21.9 in?
A21.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).
What codes cannot be used with A21.9?
A21.9 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters.
Are additional codes required with A21.9?
Yes, when using A21.9, also report: resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does A21.9 map to?
A21.9 maps to 2 SNOMED CT concepts: 19265001, 721734000. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for A21.9?
A21.9 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 A21.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like tularemia, unspecified 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 A21.9?
A21.9 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.