J15
Bacterial pneumonia, not elsewhere classified
Choose the additional character
J15 needs more characters to be billable. Pick the specific code below.
- J15.0Pneumonia due to Klebsiella pneumoniaeBillable
- J15.1Pneumonia due to PseudomonasBillable
- J15.2Pneumonia due to staphylococcusMore levels
- J15.3Pneumonia due to streptococcus, group BBillable
- J15.4Pneumonia due to other streptococciBillable
- J15.5Pneumonia due to Escherichia coliBillable
- J15.6Pneumonia due to other Gram-negative bacteriaMore levels
- J15.7Pneumonia due to Mycoplasma pneumoniaeBillable
- J15.8Pneumonia due to other specified bacteriaBillable
- J15.9Unspecified bacterial pneumoniaBillable
This code does not map to a risk-adjusting HCC in the loaded models.
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
allergic or eosinophilic pneumonia (J82) aspiration pneumonia NOS (J69.0) meconium pneumonia (P24.01) neonatal aspiration pneumonia (P24.-) pneumonia due to solids and liquids (J69.-) congenital pneumonia (P23.9) lipid pneumonia (J69.1) rheumatic pneumonia (I00) ventilator associated pneumonia (J95.851)
code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)
certain conditions originating in the perinatal period (P04-P96) certain infectious and parasitic diseases (A00-B99) complications of pregnancy, childbirth and the puerperium (O00-O9A) congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) endocrine, nutritional and metabolic diseases (E00-E88) injury, poisoning and certain other consequences of external causes (S00-T88) neoplasms (C00-D49) smoke inhalation (T59.81-) symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
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)
When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g. tracheobronchitis to bronchitis in J40).
Official Guidelines for J15
FY 2026 ›Sections that reference J15
- I.C.1.e.1)(a)Combination codes for MRSA infectionChapter 1
… combination code for the condition (e.g., code A41.02, Sepsis due to Methicillin resistant Staphylococcus aureus or code J15.212, Pneumonia due to Methicillin resistant Staphylococcus aureus). …
- I.C.10.d.1)Documentation of Ventilator associated Pneumonia
… Do not assign an additional code from categories J12-J18 to identify the type of pneumonia. …
- I.C.10.d.2)Ventilator associated Pneumonia Develops after Admission
… and subsequently develop VAP. In this instance, the principal diagnosis would be the appropriate code from categories J12-J18 for the pneumonia diagnosed at the time of admission. …
Sections whose FY 2026 text names J15, its J15 category, or a range containing it — the chapter guidance above is the authoritative source.