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3. Chapter - J00-J99
4. Section - J09-J18
5. Category - J18
6. J18.9

J18.9 - Pneumonia, unspecified organism

• Applicable to Pneumonia, unspecified organism
• The 2025 edition of ICD10-CM J18.9 became effective on October 1, 2024.
• This is the American ICD10-CM version of J18.9 - other international versions of ICD10 J18.9 may differ.
• J18.9 is a Billable / Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

The following codes above J18.9 contain annotation back-references that may be applicable to J18.9:

• Chapter: J00-J99 - Diseases of the respiratory system
• Section: J09-J18 - Influenza and pneumonia
• Category: J18 - Pneumonia, unspecified organism

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.