ICD-10 Code
International Classification of Diseases, 10th Revision
Oct 21, 2018

See: Pneumonia, unspecified organism

J18 is NOT a complete or valid ICD 10 diagnosis code.

You should code each health care encounter to the level of certainty known for that encounter. When sufficient clinical information is not known or available to assign a more specific code, it is acceptable to report the appropriate unspecified code.

See below for more specifc codes relating to
Pneumonia, unspecified organism
Code First
  • 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)
  • congenital pneumonia (P23.0)
  • drug-induced interstitial lung disorder (J70.2-J70.4)
  • interstitial pneumonia NOS (J84.9)
  • lipid pneumonia (J69.1)
  • neonatal aspiration pneumonia (P24.-)
  • pneumonitis due to external agents (J67-J70)
  • pneumonitis due to fumes and vapors (J68.0)
  • usual interstitial pneumonia (J84.17)

More specific codes for Pneumonia, unspecified organism

  • 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
See also ICD 10 code for
Back to J18
See the ICD-10-CM Coding Guidelines.

Questions related to J18 Pneumonia, unspecified organism

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.