2022 ICD-10-CM Codes for Pneumonia, unspecified organism (J18)

Instructional Notations

Code First Code First
Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • 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