A21.9 – Tularemia, unspecified
ICD-10-CM 2027 diagnosis code · Certain zoonotic bacterial diseases
ICD-10-CM code
A21.9
- Code
A21.9(claims format:A219)- Description
- Tularemia, unspecified
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 1. Certain infectious and parasitic diseases (A00-B99)
- Block
- A20-A28 Certain zoonotic bacterial diseases
- Parent codes
- A21
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
A21 – Tularemia
Includes:
- deer-fly fever
- infection due to Francisella tularensis
- rabbit fever
Index terms for A21.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in A21
- A21.0 – Ulceroglandular tularemiaBillable
- A21.1 – Oculoglandular tularemiaBillable
- A21.2 – Pulmonary tularemiaBillable
- A21.3 – Gastrointestinal tularemiaBillable
- A21.7 – Generalized tularemiaBillable
- A21.8 – Other forms of tularemiaBillable
Frequently asked questions
What is ICD-10 code A21.9?
A21.9 is the ICD-10-CM code for tularemia, unspecified, in the block A20-A28 (Certain zoonotic bacterial diseases).
Is A21.9 a billable code?
Yes. A21.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does A21.9 belong to?
It belongs to category A21 – Tularemia.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.