ICD-10 Code
International Classification of Diseases, 10th Revision
Jul 22, 2017

See: Bacterial infection of unspecified site

A49 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Bacterial infection of unspecified site
  • 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)

More specific codes for Bacterial infection of unspecified site

  • A49.0 - Staphylococcal infection, unspecified site
    • A49.01 - Methicillin susceptible Staphylococcus aureus infection, unspecified site
    • A49.02 - Methicillin resistant Staphylococcus aureus infection, unspecified site
  • A49.1 - Streptococcal infection, unspecified site
  • A49.2 - Hemophilus influenzae infection, unspecified site
  • A49.3 - Mycoplasma infection, unspecified site
  • A49.8 - Other bacterial infections of unspecified site
  • A49.9 - Bacterial infection, unspecified
See also ICD 10 code for
Back to A49
See the 2017 ICD-10-CM Coding Guidelines.

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.