J15.9
BillableUnspecified bacterial pneumonia
Unspecified bacterial pneumonia
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Pneumonia due to gram-positive bacteria
Includes
Conditions included under this code
- bronchopneumonia due to bacteria other than S. pneumoniae and H. influenzae
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
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •smoke inhalationT59.81
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •allergic or eosinophilic pneumoniaJ82
- •aspiration pneumonia NOSJ69.0
- •meconium pneumoniaP24.01
- •neonatal aspiration pneumoniaP24
- •pneumonia due to solids and liquidsJ69
- •congenital pneumoniaP23.9
- •lipid pneumoniaJ69.1
- •rheumatic pneumoniaI00
- •ventilator associated pneumoniaJ95.851
Code First
The underlying condition must be sequenced before this code
Use Additional Code
Additional codes that should follow this code
- code, where applicable, to identify:
- •exposure to environmental tobacco smokeZ77.22
- •exposure to tobacco smoke in the perinatal periodP96.81
- •history of tobacco dependenceZ87.891
- •occupational exposure to environmental tobacco smokeZ57.31
- •tobacco dependenceF17
- •tobacco useZ72.0
- •code, if applicable, to identify resistance to antimicrobial drugsZ16
Code Also
A second code may be required; sequencing depends on circumstances
- , if applicable, any associated condition such as:
- •abscessJ85.1
- •aspiration pneumoniaJ69
Related Codes(9)
J15.0Pneumonia due to Klebsiella pneumoniae
J15.1Pneumonia due to Pseudomonas
J15.2Pneumonia due to staphylococcus
J15.3Pneumonia due to streptococcus, group B
J15.4Pneumonia due to other streptococci
J15.5Pneumonia due to Escherichia coli
J15.6Pneumonia due to other Gram-negative bacteria
J15.7Pneumonia due to Mycoplasma pneumoniae
J15.8Pneumonia due to other specified bacteria
Related Conditions
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(67)
SNOMED CT
- Bacterial pneumonia53084003
- Secondary bacterial pneumonia308906005
- Healthcare associated bacterial pneumonia408680002
- Pneumonia caused by aerobic bacteria409665004
- Bacterial pneumonia with AIDS (acquired immunodeficiency syndrome)420544002
- Bacterial pneumonia with acquired immunodeficiency syndrome420544002
- Pneumonia with AIDS (acquired immunodeficiency syndrome)421671002
- Pneumonia with acquired immunodeficiency syndrome421671002
- Respiratory disorder with AIDS (acquired immunodeficiency syndrome)421874007
- Respiratory disorder with acquired immunodeficiency syndrome421874007
- HAP - hospital acquired pneumonia425464007
- Hospital acquired pneumonia425464007
- Nosocomial pneumonia425464007
- Recurrent bacterial infection428875002
- Recurrent lower respiratory tract infection448739000
- Recurrent pneumonia699014000
- Disorder of respiratory system co-occurrent with human immunodeficiency virus infection713484001
- Recurrent bacterial pneumonia713525001
- Recurrent bacterial pneumonia co-occurrent with human immunodeficiency virus infection713526000
- Bacterial pneumonia co-occurrent with human immunodeficiency virus infection713544008
- Bronchopneumonia caused by bacteria10625071000119104
UMLS
- BACT PNEUMONIAC0004626
- Bacterial PneumoniaC0004626
- Bacterial PneumoniasC0004626
- Bacterial pneumoniaC0004626
- Bacterial pneumonia (disorder)C0004626
- Bacterial pneumonia, unspecifiedC0004626
- PNEUMONIA BACTC0004626
- Pneumonia bacterialC0004626
- Pneumonia bacterial NOSC0004626
- Pneumonia, BacterialC0004626
- Pneumonias, BacterialC0004626
- Unspecified bacterial pneumoniaC0004626
- bacterial pneumoniaC0004626
- pneumonia bacterialC0004626
- Pneumonia due to gram-positive bacteriaC2887416
Clinical Terms
- Bacterial pneumonia (disorder)
- Bronchopneumonia caused by bacteria
- Pneumonia with AIDS (acquired immunodeficiency syndrome)
- PNEUMONIA BACT
- Secondary bacterial pneumonia
- Pneumonias, Bacterial
- Recurrent bacterial pneumonia
- Hospital acquired pneumonia
- BACT PNEUMONIA
- Nosocomial pneumonia
- Respiratory disorder with acquired immunodeficiency syndrome
- Pneumonia due to gram-positive bacteria
- Pneumonia bacterial
- Healthcare associated bacterial pneumonia
- Bacterial pneumonia, unspecified
- Recurrent pneumonia
- Pneumonia with acquired immunodeficiency syndrome
- Recurrent bacterial pneumonia co-occurrent with human immunodeficiency virus infection
- Bacterial pneumonia
- Recurrent bacterial infection
- Pneumonia bacterial NOS
- Bacterial pneumonia with acquired immunodeficiency syndrome
- Disorder of respiratory system co-occurrent with human immunodeficiency virus infection
- Bacterial Pneumonias
- Respiratory disorder with AIDS (acquired immunodeficiency syndrome)
- HAP - hospital acquired pneumonia
- Pneumonia, Bacterial
- Pneumonia caused by aerobic bacteria
- Recurrent lower respiratory tract infection
- Bacterial pneumonia co-occurrent with human immunodeficiency virus infection
- Bacterial pneumonia with AIDS (acquired immunodeficiency syndrome)
Frequently Asked Questions
What is the ICD-10 code for unspecified bacterial pneumonia?
The ICD-10-CM code for unspecified bacterial pneumonia is J15.9. The full clinical description is "Unspecified bacterial pneumonia". J15.9 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code J15.9 mean?
ICD-10-CM code J15.9 represents “Unspecified bacterial pneumonia”. It is classified under Chapter 10: Diseases of the Respiratory System and is a billable/specific code that can be used on a claim.
Is J15.9 a billable code?
Yes, J15.9 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is J15.9 in?
J15.9 is in Chapter 10: Diseases of the Respiratory System (codes J00-J99).
What codes cannot be used with J15.9?
J15.9 has Excludes1 notes indicating codes that cannot be used together with it, including: chlamydial pneumonia (J16.0); congenital pneumonia (P23.-); Legionnaires' disease (A48.1); and 1 more.
Are additional codes required with J15.9?
Yes, when using J15.9, also report: code, where applicable, to identify:; exposure to environmental tobacco smoke (Z77.22); exposure to tobacco smoke in the perinatal period (P96.81); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0); code, if applicable, to identify resistance to antimicrobial drugs (Z16.-).
What SNOMED CT codes does J15.9 map to?
J15.9 maps to 16 SNOMED CT concepts: 53084003, 713544008, 420544002, 10625071000119104, 713484001, and 11 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for J15.9?
J15.9 is linked to 2 UMLS Concept Unique Identifiers: C0004626, C2887416. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does J15.9 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like unspecified bacterial pneumonia 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 J15.9?
J15.9 maps to the ICD-11 code: CA40.0Z (Bacterial pneumonia, unspecified).
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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.