J17

ICD-10Billable

Pneumonia in diseases classified elsewhere

Official ICD-10-CM descriptor (FY2026)

Pneumonia in diseases classified elsewhere

J17 is valid for submission on a claim — CMS flags it as a billable, specific code.

Excludes1

Not coded here. An Excludes1 code should never be reported at the same time as the code above it.

candidial pneumonia (B37.1)
chlamydial pneumonia (J16.0)
gonorrheal pneumonia (A54.84)
histoplasmosis pneumonia (B39.0-B39.2)
measles pneumonia (B05.2)
nocardiosis pneumonia (A43.0)
pneumocystosis (B59)
pneumonia due to Pneumocystis carinii (B59)
pneumonia due to Pneumocystis jirovecii (B59)
pneumonia in actinomycosis (A42.0)
pneumonia in anthrax (A22.1)
pneumonia in ascariasis (B77.81)
pneumonia in aspergillosis (B44.0-B44.1)
pneumonia in coccidioidomycosis (B38.0-B38.2)
pneumonia in cytomegalovirus disease (B25.0)
pneumonia in toxoplasmosis (B58.3)
rubella pneumonia (B06.81)
salmonella pneumonia (A02.22)
spirochetal infection NEC with pneumonia (A69.8)
tularemia pneumonia (A21.2)
typhoid fever with pneumonia (A01.03)
varicella pneumonia (B01.2)
whooping cough with pneumonia (A37 with fifth-character 1)

Code first

Sequence the underlying condition before this code.

underlying disease, such as:
Q fever (A78)
rheumatic fever (I00)
schistosomiasis (B65.0-B65.9)

Code also

Two codes may be needed; sequencing depends on the reason for the encounter.

, if applicable, any associated condition such as:
abscess (J85.1)
aspiration pneumonia (J69.-)

Where this code sits

Chapter: 10. Diseases of the respiratory system (J00-J99)
Block: Influenza and pneumonia (J09-J18)

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Source

ICD-10-CM FY2026. Centers for Medicare & Medicaid Services (CMS) / National Center for Health Statistics (NCHS), “2026 ICD-10-CM Code Descriptions in Tabular Order” (icd10cm_order_2026.txt). Download the original file from cms.gov. Public domain (US Government work). Descriptors, billable flags and instructional notes on this page are reproduced from that file without modification. Krasyn adds no clinical guidance.