ICD-10-CM J15: Bacterial pneumonia, not elsewhere classified

ICD-10-CM Diagnosis Code (2025)

Official Description for J15

Bacterial pneumonia, not elsewhere classified

Coding Notes & Guidelines for J15

Includes Notes

bronchopneumonia due to bacteria other than S. pneumoniae and H. influenzae

Excludes1: Not Coded Here
  • chlamydial pneumonia (J16.0)
  • congenital pneumonia (P23.-)
  • Legionnaires' disease (A48.1)
  • spirochetal pneumonia (A69.8)
Excludes1: Not Coded Here
  • pneumonia due to streptococcus, group B (J15.3)
  • pneumonia due to Streptococcus pneumoniae (J13)
Code First

, if applicable, associated influenza (J09.X1, J10.0-, J11.0-)

Inclusion Terms
  • MSSA pneumonia
  • Pneumonia due to Staphylococcus aureus NOS
Inclusion Terms
  • Pneumonia due to other aerobic Gram-negative bacteria
  • Pneumonia due to Serratia marcescens
Inclusion Terms

Pneumonia due to gram-positive bacteria

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

Child Codes (More Specific Codes for J15):

J15.0 - Pneumonia due to Klebsiella pneumoniae J15.1 - Pneumonia due to Pseudomonas J15.2 - Pneumonia due to staphylococcus J15.20 - Pneumonia due to staphylococcus, unspecified J15.21 - Pneumonia due to staphylococcus aureus J15.211 - Pneumonia due to Methicillin susceptible Staphylococcus aureus J15.212 - Pneumonia due to Methicillin resistant Staphylococcus aureus J15.29 - Pneumonia due to other staphylococcus J15.3 - Pneumonia due to streptococcus, group B J15.4 - Pneumonia due to other streptococci J15.5 - Pneumonia due to Escherichia coli J15.6 - Pneumonia due to other Gram-negative bacteria J15.61 - Pneumonia due to Acinetobacter baumannii J15.69 - Pneumonia due to other Gram-negative bacteria J15.7 - Pneumonia due to Mycoplasma pneumoniae J15.8 - Pneumonia due to other specified bacteria J15.9 - Unspecified bacterial pneumonia

About ICD-10-CM Code J15 (Bacterial pneumonia)

ICD-10-CM code J15 is a billable or specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. The 2025 edition of ICD-10-CM J15 became effective on October 1, 2024.

This page provides detailed information about J15 - Bacterial pneumonia, not elsewhere classified. It includes common terminology, coding guidelines such as "Includes," "Excludes1," and "Excludes2" notes, and information on required 7th characters. Utilizing this information correctly is essential for accurate medical coding and claims submission for conditions like Bacterial pneumonia related to not elsewhere classified.