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J16

J16: Pneumonia due to other infectious organisms, not elsewhere classified

Non-billable headerICD-10-CM

J16 is a non-billable header ICD-10-CM code for pneumonia due to other infectious organisms, not elsewhere classified. It cannot be billed on its own: choose one of the more specific child codes below.

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Code first

The underlying condition must be sequenced before this code.

Code also

Both codes may be needed to describe the encounter fully. Sequencing depends on the reason for the visit.

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

Other codes that can never be billed with J16

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • J15Bacterial pneumonia, not elsewhere classified
  • J17Pneumonia in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead J16

2 child codes. Green means billable.

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.