Diagnosis Code

A49.9 BACTERIAL INFECTION, UNSPECIFIED

Code Information

Diagnosis Code: A49.9

Short Description: Bacterial infection, unspecified

Long Description: Bacterial infection, unspecified

The code A49.9 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Other bacterial diseases (A30-A49)
      • Bacterial infection of unspecified site (A49)
        • A49.9 Bacterial infection, unspecified

Code Version: 2020 ICD-10-CM

Synonyms

  • Abscess of aortic valve
  • Abscess of mitral valve
  • Abscess of pulmonary valve
  • Acne with gram negative folliculitis
  • Acute bacterial otitis externa
  • Acute bacterial tubulointerstitial nephritis
  • Acute infectious tubulointerstitial nephritis
  • Acute infective otitis externa
  • Acute interstitial nephritis
  • Acute pyelonephritis
  • Angular cheilitis
  • Angular cheilitis due to bacterial infection
  • Bacterial abscess of aortic valve
  • Bacterial abscess of mitral valve
  • Bacterial abscess of pulmonary valve
  • Bacterial cellulitis
  • Bacterial corneal ulcer
  • Bacterial encephalitis
  • Bacterial endophthalmitis
  • Bacterial esophagitis
  • Bacterial folliculitis
  • Bacterial genital infection
  • Bacterial infection associated with peritoneal dialysis catheter
  • Bacterial infection by site
  • Bacterial infection of central nervous system
  • Bacterial infection of skin
  • Bacterial infectious disease
  • Bacterial musculoskeletal infection
  • Bacterial nephritis
  • Bacterial oral infection
  • Bacterial osteomyelitis
  • Bacterial otitis media
  • Bacterial respiratory infection
  • Bacterial sinusitis
  • Bacterial tonsillitis
  • Bacterial upper respiratory infection
  • Bacterial urogenital infection
  • Beta lactam resistant bacterial infection
  • Botryomycosis
  • Cutaneous reaction caused by bacterial toxin
  • Disease due to Gram-negative bacteria
  • Erythema nodosum due to bacterial infection
  • Gram-negative bacterial cellulitis
  • Gram-negative folliculitis
  • Herpes zoster with secondary bacterial infection
  • Infection associated with peritoneal dialysis catheter
  • Infection caused by multi drug resistant bacteria
  • Infection due to anaerobic bacteria
  • Infection due to carbapenem resistant bacteria
  • Infection due to quinolone and fluoroquinolone resistant bacteria
  • Infection due to resistant bacteria
  • Infective esophagitis
  • Moderate cavitated lesion limited to outer half of dentin
  • Neuropathy due to bacterial toxin
  • Non-pyogenic bacterial infection of skin
  • Peripheral neuropathy caused by toxin
  • Pleural effusion due to another disorder
  • Pleural effusion due to bacterial infection
  • Pyogenic bacterial infection due to deficiency of myeloid differentiation primary response 88
  • Recurrent bacterial infection
  • Superficial bacterial infection of skin
  • Toxic polyneuropathy

Diagnostic Related Group(s)

The code A49.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v37.0)
  • Other Infectious And Parasitic Diseases Diagnoses With Mcc (867)
  • Other Infectious And Parasitic Diseases Diagnoses With Cc (868)
  • Other Infectious And Parasitic Diseases Diagnoses Without Cc/mcc (869)

References to Index of Diseases and Injuries

The code A49.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Type 1 Excludes Notes:
    • bacteremia NOS (R78.81)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A49.9 Right Arrow 041.9 Bacterial infection NOS
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
A49 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

This page was last updated on: 10/1/2019