A20 – Plague
ICD-10-CM 2027 diagnosis code · Certain zoonotic bacterial diseases
ICD-10-CM code
A20
- Code
A20(claims format:A20)- Description
- Plague
- Billable
- No – use a more specific code below
- 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
Billable codes under A20
A20 is a header code and cannot be used on claims. Choose the most specific code:
- A20.0 – Bubonic plagueBillable
- A20.1 – Cellulocutaneous plagueBillable
- A20.2 – Pneumonic plagueBillable
- A20.3 – Plague meningitisBillable
- A20.7 – Septicemic plagueBillable
- A20.8 – Other forms of plagueBillable
- A20.9 – Plague, unspecifiedBillable
Notes for A20
Includes:
- infection due to Yersinia pestis
Frequently asked questions
What is ICD-10 code A20?
A20 is the ICD-10-CM code for plague, in the block A20-A28 (Certain zoonotic bacterial diseases).
Is A20 a billable code?
No. A20 is a header code with more specific child codes; report one of the billable codes listed above.
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.