Is J18 a billable code?
No. J18 is a header code that groups 5 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
J18: Pneumonia, unspecified organism
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
J18 groups related diagnoses under pneumonia, unspecified organism. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
J18 questions
What does J18 mean?
J18 is the ICD-10-CM code for Pneumonia, unspecified organism. It is in chapter 10, Diseases of the respiratory system (J00-J99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.