`J12.0` Adenoviral pneumonia

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Applies from J12 Viral pneumonia, not elsewhere classified

Includes

bronchopneumonia due to viruses other than influenza viruses

Excludes2 (not included here)

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)
congenital rubella pneumonitis (P35.0)
interstitial pneumonia NOS (J84.9)
lipid pneumonia (J69.1)
neonatal aspiration pneumonia (P24.-)

Code first

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

Code also

associated abscess, if applicable (J85.1)

MS-DRG index

Defines the logic of DRG(s) 193-195 in MDC 04.

Approximate ICD-9-CM (GEMs)

480.0 Pneumonia due to adenovirus

Code annotations containing back-references to J12.0

Back-references to J12

Code Also: D81.82 Activated Phosphoinositide 3-kinase Delta Syndrome [APDS] ("pneumonia (J12-J18)")
Use Additional: J95.89 Other postprocedural complications and disorders of respiratory system, not elsewhere classified ("bacterial or viral pneumonia (J12-J18)")

Diagnosis Index entries for J12.0

Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › adenoviral
Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › in (due to) › adenovirus
Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › viral, virus (broncho) (interstitial) (lobar) › adenoviral

Nearby codes

J12 Viral pneumonia, not elsewhere classified
J12.0 Adenoviral pneumonia (this code)
J12.1 Respiratory syncytial virus pneumonia
J12.2 Parainfluenza virus pneumonia
J12.3 Human metapneumovirus pneumonia
J12.8 Other viral pneumonia
J12.81 Pneumonia due to SARS-associated coronavirus