A49 ICD-10-CM Code: Bacterial infection of unspecified site
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
A49Bacterial infection of unspecified site
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where A49 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Other bacterial diseases (A30-A49)
- 3
Category A49
Bacterial infection of unspecified site
- 4
Code A49
Bacterial infection of unspecified site
More specific choices
Codes under A49
A49 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for A49.
Code first
No “code first” instruction is listed for A49.
Use additional code
No “use additional code” instruction is listed for A49.
Excludes1
Conditions that should not be reported together with this code.
- bacterial agents as the cause of diseases classified elsewhere (B95-B96)
- meningococcal infection NOS (A39.9)
- rickettsial infection NOS (A79.9)
- spirochetal infection NOS (A69.9)
Excludes2
Conditions not included here that may be reported separately when present.
- chlamydial infection NOS (A74.9)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code A49 mean?
A49 is the FY 2027 U.S. ICD-10-CM code for “Bacterial infection of unspecified site.”
Is A49 a billable or specific ICD-10-CM code?
No. A49 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is A49 located in ICD-10-CM?
A49 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Other bacterial diseases (A30-A49) (A30–A49), under category A49, Bacterial infection of unspecified site.
What coding notes are listed for A49?
No inclusion terms are listed for A49 in this reference record. No code-first instruction is listed. Excludes1 notes: bacterial agents as the cause of diseases classified elsewhere (B95-B96); meningococcal infection NOS (A39.9); rickettsial infection NOS (A79.9); spirochetal infection NOS (A69.9). Excludes2 notes: chlamydial infection NOS (A74.9).
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