J16 Pneumonia due to other infectious organisms, not elsewhere classified

Category / Non-billable header 2 subcodes

Block: Influenza and pneumonia (J09-J18)

Excludes 1 (cannot be coded together)

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

Code Also

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

Code First

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

Subcodes

Each subcode links to a detail page with full clinical annotations.

Code Description Billable
J16..0 Chlamydial pneumonia Yes
J16..8 Pneumonia due to other specified infectious organisms Yes

Last reviewed: September 2026