DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

J15 Bacterial pneumonia, not elsewhere classified

  • Header · not billable

J15 is not billable. The category heads 14 billable codes in FY2027, grouped under 10 subdivisions.

ICD-10 code by name

What is the ICD-10 code for Pseudomonas pneumonia?
Pseudomonas pneumonia ICD-10 code: J15.1 Pneumonia due to Pseudomonas. Search ICD-10 for Pseudomonas pneumonia
What is the ICD-10 code for Klebsiella pneumonia?
Klebsiella pneumonia ICD-10 code: J15.0 Pneumonia due to Klebsiella pneumoniae. Alphabetic Index: Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Klebsiella (pneumoniae) → J15.0. Search ICD-10 for Klebsiella pneumonia

Where it sits

  1. Chapter 10 Diseases of the respiratory system (J00-J99)
  2. J09-J18 Influenza and pneumonia (J09-J18)
  3. J15 Bacterial pneumonia, not elsewhere classified
Billable codes
14
Subdivisions
10
CC / MCC codes
0 / 14
HCC V28 codes
10
New FY2027
0
Index entries
76

Codes in J15

  1. J15.0
    Pneumonia due to Klebsiella pneumoniae
    BillableMCC282
  2. J15.1
    Pneumonia due to Pseudomonas
    BillableMCC282
  3. J15.2
    Pneumonia due to staphylococcus
    Header
  4. J15.20
    Pneumonia due to staphylococcus, unspecified
    BillableMCC282
  5. J15.21
    Pneumonia due to staphylococcus aureus
    Header
  6. J15.211
    Pneumonia due to Methicillin susceptible Staphylococcus aureus
    BillableMCC282
    Inclusion terms 2

    Inclusion terms

    • MSSA pneumonia
    • Pneumonia due to Staphylococcus aureus NOS
  7. J15.212
    Pneumonia due to Methicillin resistant Staphylococcus aureus
    BillableMCC282
  8. J15.29
    Pneumonia due to other staphylococcus
    BillableMCC282
  9. J15.3
    Pneumonia due to streptococcus, group B
    BillableMCC
  10. J15.4
    Pneumonia due to other streptococci
    BillableMCC
    Excludes1 2

    Excludes1

    • pneumonia due to streptococcus, group B (J15.3) J15.3
    • pneumonia due to Streptococcus pneumoniae (J13) J13
  11. J15.5
    Pneumonia due to Escherichia coli
    BillableMCC282
  12. J15.6
    Pneumonia due to other Gram-negative bacteria
    Header
  13. J15.61
    Pneumonia due to Acinetobacter baumannii
    BillableMCC282
  14. J15.69
    Pneumonia due to other Gram-negative bacteria
    BillableMCC282
    Inclusion terms 2

    Inclusion terms

    • Pneumonia due to other aerobic Gram-negative bacteria
    • Pneumonia due to Serratia marcescens
  15. J15.7
    Pneumonia due to Mycoplasma pneumoniae
    BillableMCC
  16. J15.8
    Pneumonia due to other specified bacteria
    BillableMCC282
  17. J15.9
    Unspecified bacterial pneumonia 1 billable code
    BillableMCC

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At J15

Includes

  • bronchopneumonia due to bacteria other than S. pneumoniae and H. influenzae

Excludes1

  • chlamydial pneumonia (J16.0) J16.0
  • congenital pneumonia (P23.-) P23
  • Legionnaires' disease (A48.1) A48.1
  • spirochetal pneumonia (A69.8) A69.8

Code first

  • , if applicable, associated influenza (J09.X1, J10.0-, J11.0-) J09.X1 J10.0 J11.0

Code also

  • , if applicable, any associated condition such as:
  • abscess (J85.1) J85.1
  • aspiration pneumonia (J69.-) J69

Notes that also apply

Block J09-J18 instructions (Excludes2 9, Use additional code 1): printed on the block page.

Chapter 10 instructions (Notes 1, Excludes2 9, Use additional code 7): printed on the chapter 10 page.

Index entries

  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Friedländer's bacillus → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Klebsiella (pneumoniae) → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Pseudomonas → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)staphylococcal (broncho) (lobar) → J15.20
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)MSSA (methicillin susceptible Staphylococcus aureus) → J15.211
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)MRSA (Methicillin resistant Staphylococcus aureus) → J15.212
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)streptococcal NEC (broncho) (lobar) → J15.4
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Escherichia coli (E. coli) → J15.5
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Enterobacter → J15.69
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)gram-negative bacteria NEC → J15.69
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Proteus → J15.69
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Serratia marcescens → J15.69
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Eaton's agent → J15.7
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Mycoplasma (pneumoniae) → J15.7
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)pleuro-pneumonia-like organism (PPLO) → J15.7
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)anaerobes → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Bacteroides (fragilis) (oralis) (melaninogenicus) → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Butyrivibrio (fibriosolvens) → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Clostridium (haemolyticum) (novyi) → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Eubacterium → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Fusobacterium (nucleatum) → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Peptococcus → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Peptostreptococcus → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Veillonella → J15.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal)Friedländer's bacillus → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal)Klebsiella (pneumoniae) → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Friedländer's bacillus → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Klebsiella (pneumoniae) → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)lobar (disseminated) (double) (interstitial)Friedländer's bacillus → J15.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)lobar (disseminated) (double) (interstitial)Klebsiella (pneumoniae) → J15.0
  • Infection, infected, infective (opportunistic)Pseudomonas NECpneumonia → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal)Pseudomonas → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Pseudomonas NEC → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)interstitialpseudomonas → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)lobar (disseminated) (double) (interstitial)Pseudomonas → J15.1
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Staphylococcus → J15.20
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)staphylococcal (broncho) (lobar)aureus (methicillin susceptible) (MSSA) → J15.211
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)staphylococcal (broncho) (lobar)specified NEC → J15.29
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal)streptococcal NEC → J15.4
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Streptococcus → J15.4

36 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy