DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Block · Chapter 10

J09-J18 Influenza and pneumonia (J09-J18)

Block J09-J18 groups 10 categories with 53 billable codes in FY2027.

Where it sits

  1. Chapter 10 Diseases of the respiratory system (J00-J99)
  2. J09-J18 Influenza and pneumonia (J09-J18)

Neighbouring blocks

Categories
10
Billable codes
53
CC codes
1
MCC codes
37
HCC V28 codes
10
New FY2027
0

Categories in J09-J18

  • J09

    Influenza due to certain identified influenza viruses

    Flubird → J09.X2

    • 4 billable codes
    • 1 MCC
  • J10

    Influenza due to other identified influenza virus

    Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus)B → J10-

    • 9 billable codes
    • 3 MCC
  • J11

    Influenza due to unidentified influenza virus

    Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) → J11.1

    • 8 billable codes
    • 2 MCC
  • J12

    Viral pneumonia, not elsewhere classified

    COVID-19pneumonia → J12.82

    • 8 billable codes
    • 8 MCC
  • J13

    Pneumonia due to Streptococcus pneumoniae

    Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Streptococcus pneumoniae → J13

    • Billable, no subdivisions
    • 1 MCC
  • J14

    Pneumonia due to Hemophilus influenzae

    Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Hemophilus influenzae (broncho) (lobar) → J14

    • Billable, no subdivisions
    • 1 MCC
  • J15

    Bacterial pneumonia, not elsewhere classified

    Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)Proteus → J15.69

    • 14 billable codes
    • 14 MCC
    • 10 with HCC
  • J16

    Pneumonia due to other infectious organisms, not elsewhere classified

    Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)chlamydial → J16.0

    • 2 billable codes
    • 2 MCC
  • J17

    Pneumonia in diseases classified elsewhere

    –

    • Billable, no subdivisions
    • 1 MCC
  • J18

    Pneumonia, unspecified organism

    Bronchoalveolitis → J18.0

    • 5 billable codes
    • 1 CC
    • 4 MCC

Index main terms

  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) → J12, J13, J14, J15, J16, J18 (135 entries)
  • Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus) → J09, J10, J11 (54 entries)
  • Infection, infected, infective (opportunistic) → J12, J13, J15, J18 (5 entries)
  • Flu → J09 (3 entries)
  • Virus, viral → J09, J12 (3 entries)
  • Anasarca → J18 (2 entries)
  • Syndrome → J12 (2 entries)
  • Bronchoalveolitis → J18 (1 entry)
  • COVID-19 → J12 (1 entry)
  • Embolism (multiple) (paradoxical) → J13 (1 entry)
  • Pleuropneumonia (acute) (bilateral) (double) (septic) → J18 (1 entry)
  • Pneumopleurisy, pneumopleuritis → J18 (1 entry)
  • Stasis → J18 (1 entry)

Block instructions

Excludes2

  • allergic or eosinophilic pneumonia (J82) J82
  • aspiration pneumonia NOS (J69.0) J69.0
  • meconium pneumonia (P24.01) P24.01
  • neonatal aspiration pneumonia (P24.-) P24
  • pneumonia due to solids and liquids (J69.-) J69
  • congenital pneumonia (P23.9) P23.9
  • lipid pneumonia (J69.1) J69.1
  • rheumatic pneumonia (I00) I00
  • ventilator associated pneumonia (J95.851) J95.851

Use additional code

  • code, if applicable, to identify resistance to antimicrobial drugs (Z16.-) Z16

Notes that also apply

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