J18 is a non-billable/non-specific diagnosis code from the 2025 ICD-10-CM used to classify the following condition: Pneumonia, unspecified organism.
Code first
Code also
If applicable, any associated condition such as:
Aspiration pneumonia (J69.-)
Type 1 excludes
Type 2 excludes
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)
Codes
Versions
2025
Code changed
Code also
- , if applicable, any associated condition such as:
- aspiration pneumonia (J69.-)
Code first
associated influenza, if applicable (J09.X1, J10.0-, J11.0-)
- , if applicable, associated influenza (J09.X1, J10.0-, J11.0-)
Type 1 excludes
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 (J84.178)
- 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)
Type 2 excludes
- 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)
2024
No changes
2023
No changes
2022
No changes
2021
Code changed
Type 1 excludes
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)
- 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 (J84.178)
2020
No changes
2019
No changes
2018
No changes
2017
No changes
2016
New code