A48 – Other bacterial diseases, not elsewhere classified
ICD-10-CM 2027 diagnosis code · Other bacterial diseases
ICD-10-CM code
A48
- Code
A48(claims format:A48)- Description
- Other bacterial diseases, not elsewhere classified
- 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
- A30-A49 Other bacterial diseases
Billable codes under A48
A48 is a header code and cannot be used on claims. Choose the most specific code:
- A48.0 – Gas gangreneBillable
- A48.1 – Legionnaires' diseaseBillable
- A48.2 – Nonpneumonic Legionnaires' disease [Pontiac fever]Billable
- A48.3 – Toxic shock syndromeBillable
- A48.4 – Brazilian purpuric feverBillable
- A48.5 – Other specified botulismHeader (more codes below)
- A48.8 – Other specified bacterial diseasesBillable
Notes for A48
Excludes1 (not coded here):
- actinomycetoma (B47.1)
Frequently asked questions
What is ICD-10 code A48?
A48 is the ICD-10-CM code for other bacterial diseases, not elsewhere classified, in the block A30-A49 (Other bacterial diseases).
Is A48 a billable code?
No. A48 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.