ICD-10-CM J15.9 is the diagnosis code for Unspecified bacterial pneumonia. This code falls under the section "Influenza and pneumonia" within Chapter 10 — Diseases of the respiratory system (J00-J99). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where J15.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, J15.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
J15.9 is the ICD-10-CM diagnosis code for "Unspecified bacterial pneumonia". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of J15.9 is J15 ("Bacterial pneumonia, not elsewhere classified"). J15.9 provides a more specific classification within this category.
J15.9 is located in Section J09-J18 — "Influenza and pneumonia" within Chapter 10 of the ICD-10-CM Tabular List.
Use J15.9 when the patients documented diagnosis matches "Unspecified bacterial pneumonia" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified bacterial pneumonia is J15.9.
Yes, J15.9 can be used as a primary diagnosis code since it is billable and specific.
J15.9 is in Chapter 10 of the ICD-10-CM Tabular List.
Yes, J15.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.