MCMedicalCodingSoftware
A49.8

A49.8: Other bacterial infections of unspecified site

Billable / specific codeICD-10-CM

A49.8 is a billable, specific ICD-10-CM code for other bacterial infections of unspecified site. It is valid for submission on a claim.

Check A49.8 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above A49.8

A category’s note binds every code beneath it.

Written on A49: Bacterial infection of unspecified site

  • 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 inherited from the categories above A49.8

Not part of this code, but both may be coded when both are present.

Written on A49: Bacterial infection of unspecified site

  • chlamydial infection NOS (A74.9)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Colibacillosis
  • Friedländer's B NEC(bacillus)
  • Burkholderia›cepacia
  • Infection, infected, infective›Bacteroides NEC
  • Infection, infected, infective›Cronobacter(sakazakii)
  • Infection, infected, infective›Escherichia coli NEC(E.)
  • Infection, infected, infective›Klebsiella pneumoniae NEC(K.)
  • Infection, infected, infective›mixed flora NEC(bacterial)
  • Infection, infected, infective›Proteus NEC(mirabilis) (morganii) (vulgaris)
  • Infection, infected, infective›Pseudomonas NEC
  • Infection, infected, infective›Serratia NEC
  • Infection, infected, infective›Bacillus›Friedländer's NEC

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A49

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.