Skip to content
Dx

ICD-10-CM 2027 diagnosis code

J16Pneumonia due to other infectious organisms, not elsewhere classified

Not billable — use a more specific code

J16 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.Short description: Pneumonia due to oth infectious organisms, NEC

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About J16

J16 is the ICD-10-CM diagnosis code for pneumonia due to other infectious organisms, not elsewhere classified. It belongs to block J09-J18 (influenza and pneumonia) and chapter 10 (diseases of the respiratory system). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: J16.0 (pneumonia) and J16.8 (organisms).

Don't report J16 together with the conditions in its Excludes1 note: congenital pneumonia (P23.-), ornithosis (A70), pneumocystosis (B59) and pneumonia NOS (J18.9).

Code first: , if applicable, associated influenza (J09.X1, J10.0-, J11.0-).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under J16

Coding notes

Excludes1Not coded here — never report together with this code
  • congenital pneumonia (P23.-)
  • ornithosis (A70)
  • pneumocystosis (B59)
  • pneumonia NOS (J18.9)
Code firstSequence the underlying condition first
Code alsoTwo codes may be needed; sequencing depends on circumstances
  • , if applicable, any associated condition such as:
  • abscess (J85.1)
  • aspiration pneumonia (J69.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to J16.

Broader instructions also apply from J09-J18 Influenza and pneumonia and Chapter 10: Diseases of the respiratory system.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about J16

Is J16 billable?

No. J16 is a header code. Report one of its more specific subcodes instead.