ICD-10-CM › J00-J99 › J09-J18 › J codes › J18

J18

Pneumonia, unspecified organism

Not billableICD-10-CM diagnosis code.

This code exists but cannot be submitted on its own. It groups the more specific codes beneath it.

A category header for its whole life, FY2016 onwards. It has never been valid for submission on its own.

Submit one of these 5 more specific codes instead:

  • J18.0 Bronchopneumonia, unspecified organism
  • J18.1 Lobar pneumonia, unspecified organism
  • J18.2 Hypostatic pneumonia, unspecified organism
  • J18.8 Other pneumonia, unspecified organism
  • J18.9 Pneumonia, unspecified organism

What has happened to this code

Every change the publisher made, from 2012 to now. Entries marked draft are from the pre-implementation releases: ICD-10 took effect on 1 October 2015, so nothing before FY2016 was ever valid on a claim.

  1. FY2012 Added to the draft code set draft Pneumonia, unspecified organism

Official coding rules

Published by CDC for FY2027. A rule attached to a category binds every code beneath it, so the rules inherited from this code's ancestors are shown with the code they come from.

This code

Excludes1 - never coded here

  • congenital pneumonia (P23.0)
  • drug-induced interstitial lung disorder (J70.2-J70.4)
  • interstitial pneumonia NOS (J84.9)
  • neonatal aspiration pneumonia (P24.-)
  • pneumonitis due to fumes and vapors (J68.0)
  • usual interstitial pneumonia (J84.178)

Excludes2 - not included here

  • abscess of lung with pneumonia (J85.1)
  • aspiration pneumonia due to anesthesia during labor and delivery (O74.0)
  • aspiration pneumonia due to anesthesia during pregnancy (O29)
  • aspiration pneumonia due to anesthesia during puerperium (O89.0)
  • aspiration pneumonia due to solids and liquids (J69.-)
  • aspiration pneumonia NOS (J69.0)
  • lipid pneumonia (J69.1)
  • pneumonitis due to external agents (J67-J70)

Code first

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

Code also

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

Inherited from the J09-J18 section Influenza and pneumonia (J09-J18)

Excludes2 - not included here

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

Use additional code

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