J12 – Viral pneumonia, not elsewhere classified

ICD-10-CM 2027 diagnosis code · Influenza and pneumonia

Non-billable header

ICD-10-CM code J12

Code: J12 (claims format: J12)
Description: Viral pneumonia, not elsewhere classified
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: J09-J18 Influenza and pneumonia

Billable codes under J12

J12 is a header code and cannot be used on claims. Choose the most specific code:

J12.0 – Adenoviral pneumoniaBillable
J12.1 – Respiratory syncytial virus pneumoniaBillable
J12.2 – Parainfluenza virus pneumoniaBillable
J12.3 – Human metapneumovirus pneumoniaBillable
J12.8 – Other viral pneumoniaHeader (more codes below)
J12.9 – Viral pneumonia, unspecifiedBillable

Notes for J12

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)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block J09-J18

Excludes2 (not included here):

allergic or eosinophilic pneumonia (J82)
aspiration pneumonia NOS (J69.0)
meconium pneumonia (P24.01)
neonatal aspiration pneumonia (P24.-)
pneumonia due to solids and liquids (J69.-)
congenital pneumonia (P23.9)
lipid pneumonia (J69.1)
rheumatic pneumonia (I00)
ventilator associated pneumonia (J95.851)

Use additional code:

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

Frequently asked questions

What is ICD-10 code J12?

J12 is the ICD-10-CM code for viral pneumonia, not elsewhere classified, in the block J09-J18 (Influenza and pneumonia).

Is J12 a billable code?

No. J12 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.