DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

J16 Pneumonia due to other infectious organisms, not elsewhere classified

  • Header · not billable

J16 is not billable. The category heads 2 billable codes in FY2027: the 2 codes directly below it.

Index → code

  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)chlamydial → J16.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Chlamydia → J16.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)specified NECorganism NEC → J16.8

Where it sits

  1. Chapter 10 Diseases of the respiratory system (J00-J99)
  2. J09-J18 Influenza and pneumonia (J09-J18)
  3. J16 Pneumonia due to other infectious organisms, not elsewhere classified
Billable codes
2
Subdivisions
2
CC / MCC codes
0 / 2
HCC V28 codes
0
New FY2027
0
Index entries
6

Codes in J16

  1. J16.0
    Chlamydial pneumonia
    BillableMCC
  2. J16.8
    Pneumonia due to other specified infectious organisms
    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 J16

Excludes1

  • congenital pneumonia (P23.-) P23
  • ornithosis (A70) A70
  • pneumocystosis (B59) B59
  • pneumonia NOS (J18.9) J18.9

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)chlamydial → J16.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)Chlamydia → J16.0
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)broncho-, bronchial (confluent) (croupous) (diffuse) (disseminated) (hemorrhagic) (involving lobes) (lobar) (terminal)specified organism NEC → J16.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)lobar (disseminated) (double) (interstitial)specified organism NEC → J16.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)specified NECorganism NEC → J16.8
  • Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved)in (due to)specifiedorganism NEC → J16.8

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

Hierarchy