AutoICD API

A49.9

Billable

Bacterial infection, unspecified

Bacterial infection, unspecified

Status

Billable / Specific

Block

A30-A49

Parent Code

A49

ICD-11 Mapping

1 equivalent

Coding Notes

Includes

Conditions included under this code

  • diseases generally recognized as communicable or transmissible

Use Additional Code

Additional codes that should follow this code

Related Codes(5)
ICD-11 Equivalents(1)

ICD-11 Equivalents

View full mapping

Corresponding ICD-11 codes from the WHO crosswalk mapping

Also Known As / Clinical Terms(261)

SNOMED CT

Clinical Terms

  • Acute infective interstitial nephritis
  • Bacterial abscess of aortic valve
  • Toxic polyneuropathy
  • Neonatal hyperbilirubinaemia due to bacterial infection
  • Bacterial toxin-mediated cutaneous reaction
  • Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to HOIP deficiency
  • other bacterial infection
  • Bacterial cellulitis
  • Bacterial musculoskeletal infection
  • Bacterial tenosynovitis
  • INFECT BACT
  • Bacterial genital infection
  • Bacterial Disorder
  • Acute tubulointerstitial nephritis
  • Polyneuropathy due to toxic agents
  • Actinophytosis
  • Bacterial urogenital infection
  • Bacterial infection associated with peritoneal dialysis catheter
  • Acne with gram negative folliculitis
  • Bacterial nephritis
  • Infection caused by aminoglycoside resistant bacteria
  • Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis
  • bacterial disease
  • Gram-negative folliculitis
  • Acute interstitial nephritis
  • Bacterial tonsillitis
  • Bacterial infection due to human immunodeficiency virus infection
  • Pleural effusion caused by bacterial infection
  • Acute pyelonephritis caused by bacterium
  • Bacterial Diseases
  • Upper respiratory bacterial infection
  • Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to HOIL-1 deficiency
  • Bacterial infection of skin and subcutis
  • Pyogenic bacterial infection due to deficiency of myeloid differentiation primary response 88
  • Infections, Bacterial
  • Infection associated with peritoneal dialysis catheter
  • Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to RNF31 mutation
  • Botryomycosis
  • Peripheral neuropathy caused by toxin
  • bacterial infections
  • Beta lactam resistant bacterial infection
  • Bacterial sinusitis
  • Infection caused by antimicrobial resistant bacteria
  • Non-pyogenic bacterial infection of skin
  • Acute kidney infection
  • Bacterial respiratory infection
  • Bacterial esophagitis
  • Bacterial osteomyelitis
  • Abscess of pulmonary valve
  • Anaerobic bacterial infection
  • Infection caused by resistant bacteria
  • Invasive bacterial infection
  • bacteria caused diseases
  • ATIN - Acute tubulo-interstitial nephritis
  • Bacterial infection of skin
  • BACT INFECT
  • Pyogenic bacterial infection due to MyD88 deficiency
  • Invasive bacterial infectious disease
  • Neuropathy caused by bacterial toxin
  • Bacterial pseudomycosis
  • Acute infective otitis externa
  • Angular stomatitis
  • Bacterial infectious disease
  • bacteria caused disease
  • Disease caused by bacteria
  • Acute pyelonephritis
  • Perleche
  • Infection caused by anaerobic bacteria
  • Acute TIN (tubulointerstitial nephritis)
  • Infection caused by multi antimicrobial drug resistant bacteria
  • Moderate cavitated lesion limited to outer half of dentin
  • Bacterial infection of tendon sheath
  • Cutaneous reaction caused by bacterial toxin
  • Bacterial corneal ulcer
  • Angular cheilitis due to bacterial infection
  • Infection caused by carbapenem resistant bacteria
  • Acute PN - pyelonephritis
  • Bacterial angular cheilitis
  • Abscess of aortic valve
  • Erythema nodosum due to bacterial infection
  • Bacterial infectious disease (disorder)
  • Pleural effusion caused by bacteria
  • Acute bacterial pyelonephritis
  • Acute tubulointerstitial disease
  • Bacterial oral infection
  • Acute bacterial TIN (tubulointerstitial nephritis)
  • Disease caused by Gram-negative bacteria
  • Acute tubulo-interstitial nephritis
  • Acute infectious tubulointerstitial nephritis
  • Bacterial infection of central nervous system
  • Gram-negative bacterial cellulitis
  • Bacterial upper respiratory infection
  • Acute bacterial otitis externa
  • Bacterial otitis media
  • Perlèche
  • Bacterial abscess of mitral valve
  • Bacterial infection NOS
  • Superficial bacterial infection of skin
  • Bacterial endophthalmitis
  • Bacterial infection due to HIV infection
  • Herpes zoster with secondary bacterial infection
  • Bacterial abscess of pulmonary valve
  • Infection bacterial
  • APN - Acute pyelonephritis
  • Infection of tendon sheath caused by bacterium
  • Infection, Bacterial
  • AIN - Acute interstitial nephritis
  • Erythema nodosum caused by Bacteria
  • Abscess of mitral valve
  • Neonatal hyperbilirubinemia due to bacterial infection
  • Bacterial oesophagitis
  • Infection caused by quinolone and fluoroquinolone resistant bacteria
  • Bacterial dermatological disorders
  • Carbapenem resistant bacterial infection
  • Acute bacterial tubulointerstitial nephritis
  • Bacterial infection co-occurrent and due to herpes zoster
  • Infection caused by multi drug resistant bacteria
  • bacterial infectious diseases
  • Bacterial folliculitis
  • Bacterial encephalitis
  • Recurrent bacterial infection
  • Angular cheilitis
  • Bacterial infectious disorders
Frequently Asked Questions
What is the ICD-10 code for bacterial infection, unspecified?

The ICD-10-CM code for bacterial infection, unspecified is A49.9. The full clinical description is "Bacterial infection, unspecified". A49.9 is a billable/specific code that can be used on insurance claims and medical billing.

What does ICD-10 code A49.9 mean?

ICD-10-CM code A49.9 represents “Bacterial infection, unspecified”. It is classified under Chapter 1: Certain Infectious and Parasitic Diseases and is a billable/specific code that can be used on a claim.

Is A49.9 a billable code?

Yes, A49.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.

What chapter is A49.9 in?

A49.9 is in Chapter 1: Certain Infectious and Parasitic Diseases (codes A00-B99).

What codes cannot be used with A49.9?

A49.9 has Excludes1 notes indicating codes that cannot be used together with it, including: certain localized infections - see body system-related chapters; bacterial agents as the cause of diseases classified elsewhere (B95-B96); chlamydial infection NOS (A74.9); and 4 more.

Are additional codes required with A49.9?

Yes, when using A49.9, also report: resistance to antimicrobial drugs (Z16.-).

What SNOMED CT codes does A49.9 map to?

A49.9 maps to 67 SNOMED CT concepts: 28637003, 36689008, 430065009, 430616003, 431238002, and 62 more. SNOMED CT is a clinical terminology used in electronic health records.

What are the UMLS CUIs for A49.9?

A49.9 is linked to 1 UMLS Concept Unique Identifier: C0004623. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

How does A49.9 relate to ICF functioning codes?

ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like bacterial infection, unspecified affect a person's functioning: body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.

What is the ICD-11 equivalent of A49.9?

A49.9 maps to the ICD-11 code: 1C41 (Bacterial infection of unspecified site).

Automate ICD-10 Coding With AI

Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.

Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.