Non-Billable / Non-Specific Code
ICD-10-CM A49 is the diagnosis code for Bacterial infection of unspecified site. This code falls under the section "Other bacterial diseases" within Chapter 1 — Certain infectious and parasitic diseases (A00-B99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as A49. They are mutually exclusive:
Understanding where A49 sits in the ICD-10-CM classification helps ensure proper coding:
No, A49 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
A49 is the ICD-10-CM diagnosis code for "Bacterial infection of unspecified site". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
A49 is located in Section A30-A49 — "Other bacterial diseases" within Chapter 1 of the ICD-10-CM Tabular List.
A49 has 6 sub-code(s) that provide more specific detail: A49.0, A49.1, A49.2, A49.3, A49.8 and more.
Use A49 when the patients documented diagnosis matches "Bacterial infection of unspecified site" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Bacterial infection of unspecified site is A49.
No, A49 is non-billable. Use a more specific sub-code for primary diagnosis billing.
A49 is in Chapter 1 of the ICD-10-CM Tabular List.
Type 1 Excludes for A49 include: bacterial agents as the cause of diseases classified elsewhere (B95-B96); chlamydial infection NOS (A74.9); meningococcal infection NOS (A39.9) and more.
Yes, A49 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.