A49.9
BillableBacterial infection, unspecified
Bacterial infection, unspecified
Coding Notes
Includes
Conditions included under this code
- diseases generally recognized as communicable or transmissible
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
Use Additional Code
Additional codes that should follow this code
- code to identify resistance to antimicrobial drugs (Z16.-)
Also Known As / Clinical Terms
SNOMED CT
- Acute bacterial TIN (tubulointerstitial nephritis)22352007
- Acute bacterial tubulointerstitial nephritis22352007
- AIN - Acute interstitial nephritis28637003
- ATIN - Acute tubulo-interstitial nephritis28637003
- Acute TIN (tubulointerstitial nephritis)28637003
- Acute interstitial nephritis28637003
- Acute tubulo-interstitial nephritis28637003
- Acute tubulointerstitial disease28637003
- Acute tubulointerstitial nephritis28637003
- APN - Acute pyelonephritis36689008
- Acute PN - pyelonephritis36689008
- Acute kidney infection36689008
- Acute pyelonephritis36689008
- Polyneuropathy due to toxic agents45600000
- Toxic polyneuropathy45600000
- Bacterial osteomyelitis61011009
- Acute infectious tubulointerstitial nephritis66993009
- Acute infective interstitial nephritis66993009
- Bacterial disease87628006
- Bacterial infection87628006
- Bacterial infectious disease87628006
- Disease caused by bacteria87628006
- Bacterial infection of central nervous system128119004
- Bacterial dermatological disorders128936008
- Bacterial infection of skin128936008
- Bacterial infection of skin and subcutis128936008
- Bacterial encephalitis230181004
- Neuropathy caused by bacterial toxin230611005
- Bacterial corneal ulcer231893002
- Bacterial esophagitis235601001
- Bacterial oesophagitis235601001
- Gram-negative folliculitis238380009
- Actinophytosis238413001
- Bacterial pseudomycosis238413001
- Botryomycosis238413001
- Non-pyogenic bacterial infection of skin238417000
- Angular cheilitis266429005
- Angular stomatitis266429005
- Perleche266429005
- Perlèche266429005
- Acute infective otitis externa267665002
- Superficial bacterial infection of skin275441009
- Bacterial respiratory infection312117008
- Bacterial upper respiratory infection312118003
- Upper respiratory bacterial infection312118003
- Bacterial urogenital infection312123003
- Bacterial genital infection312125005
- Bacterial musculoskeletal infection312126006
- Bacterial oral infection312128007
- Disease caused by Gram-negative bacteria371583007
- Bacterial folliculitis399324007
- Acne with gram negative folliculitis402642005
- Gram-negative bacterial cellulitis402927009
- Bacterial cellulitis402929007
- Erythema nodosum caused by Bacteria402968000
- Erythema nodosum due to bacterial infection402968000
- Infection caused by antimicrobial resistant bacteria409796004
- Infection caused by resistant bacteria409796004
- Bacterial endophthalmitis413626002
- Anaerobic bacterial infection423451008
- Infection caused by anaerobic bacteria423451008
- Beta lactam resistant bacterial infection426084006
- Recurrent bacterial infection428875002
- Abscess of aortic valve430065009
- Abscess of mitral valve430616003
- Infection caused by quinolone and fluoroquinolone resistant bacteria430946003
- Abscess of pulmonary valve431238002
- Bacterial abscess of pulmonary valve431261000
- Bacterial abscess of mitral valve431262007
- Bacterial abscess of aortic valve432992007
- Infection associated with peritoneal dialysis catheter473069007
- Acute bacterial otitis externa700220003
- Moderate cavitated lesion limited to outer half of dentin703339005
- Bacterial tonsillitis703468005
- Bacterial otitis media703469002
- Bacterial sinusitis703470001
- Angular cheilitis due to bacterial infection707240008
- Bacterial angular cheilitis707240008
- Carbapenem resistant bacterial infection707274007
- Infection caused by carbapenem resistant bacteria707274007
- Peripheral neuropathy caused by toxin709143008
- Pyogenic bacterial infection due to MyD88 deficiency718232007
- Pyogenic bacterial infection due to deficiency of myeloid differentiation primary response 88718232007
- Bacterial toxin-mediated cutaneous reaction762285009
- Cutaneous reaction caused by bacterial toxin762285009
- Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis829973009
- Bacterial infection due to HIV infection838338001
- Bacterial infection due to human immunodeficiency virus infection838338001
- Acute bacterial pyelonephritis838353009
- Acute pyelonephritis caused by bacterium838353009
- Bacterial infection of tendon sheath866138009
- Bacterial tenosynovitis866138009
- Infection of tendon sheath caused by bacterium866138009
- Neonatal hyperbilirubinaemia due to bacterial infection1142078006
- Neonatal hyperbilirubinemia due to bacterial infection1142078006
- Invasive bacterial infection1300178001
- Invasive bacterial infectious disease1300178001
- Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to HOIL-1 deficiency1365687001
- Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to HOIP deficiency1365687001
- Autoinflammatory syndrome with pyogenic bacterial infection and amylopectinosis due to RNF31 mutation1365687001
- Bacterial infection associated with peritoneal dialysis catheter442171000124103
- Bacterial infection co-occurrent and due to herpes zoster12561000132105
- Herpes zoster with secondary bacterial infection12561000132105
- Bacterial nephritis42231000009109
- Infection caused by aminoglycoside resistant bacteria125871000119102
- Infection caused by multi antimicrobial drug resistant bacteria32811000119109
- Infection caused by multi drug resistant bacteria32811000119109
- Pleural effusion caused by bacteria105901000119108
- Pleural effusion caused by bacterial infection105901000119108
UMLS
- BACT INFECTC0004623
- Bacterial DiseaseC0004623
- Bacterial DiseasesC0004623
- Bacterial DisorderC0004623
- Bacterial InfectionC0004623
- Bacterial InfectionsC0004623
- Bacterial diseaseC0004623
- Bacterial infectionC0004623
- Bacterial infection NOSC0004623
- Bacterial infection of unspecified siteC0004623
- Bacterial infection, unspecifiedC0004623
- Bacterial infectionsC0004623
- Bacterial infectious diseaseC0004623
- Bacterial infectious disease (disorder)C0004623
- Bacterial infectious disordersC0004623
- Disease caused by bacteriaC0004623
- INFECT BACTC0004623
- Infection bacterialC0004623
- Infection, BacterialC0004623
- Infections, BacterialC0004623
- bacteria caused diseaseC0004623
- bacteria caused diseasesC0004623
- bacterial diseaseC0004623
- bacterial diseasesC0004623
- bacterial infectionC0004623
- bacterial infectionsC0004623
- bacterial infectious diseasesC0004623
- disease caused by bacteriaC0004623
- other bacterial infectionC0004623
Frequently Asked Questions
What is ICD-10 code A49.9?
ICD-10-CM code A49.9 represents "Bacterial infection, unspecified". It 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 you should also code: code to identify 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.
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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.