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A49

Non-billable

Bacterial infection of unspecified site

A49 is the ICD-10-CM code for Bacterial infection of unspecified site. It is a non-billable category code — use a more specific child code such as A49.0 for billing.

Status
Header (non-billable)
Chapter
A00-B99
Subcodes
6
Edition
FY2026

A00-B99 Certain infectious and parasitic diseases

Excludes1 — not coded here

  • •bacterial agents as the cause of diseases classified elsewhere (B95-B96)
  • •chlamydial infection NOS (A74.9)
  • •meningococcal infection NOS (A39.9)
  • •rickettsial infection NOS (A79.9)
  • •spirochetal infection NOS (A69.9)

Frequently asked questions

What is ICD-10 code A49?
A49 is the ICD-10-CM code for "Bacterial infection of unspecified site". It falls under A00-B99 Certain infectious and parasitic diseases.
Is A49 a billable code?
No — A49 is a non-billable header code. Use a more specific child code (such as A49.0) for billing.
What are the subcodes of A49?
A49 has 6 more specific child codes, including A49.0, A49.1, A49.2.
What is excluded from A49?
Excludes1 (not coded here): bacterial agents as the cause of diseases classified elsewhere (B95-B96); chlamydial infection NOS (A74.9); meningococcal infection NOS (A39.9); rickettsial infection NOS (A79.9).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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