ICD-10 Logo
ICDxICD-10 Medical Coding
ICD-10 Logo
ICDxICD-10 Medical Coding
ICD 10 CodesDiagnoses
ICD 10 CodesDiagnoses
ICD-10 Logo
ICDxICD-10 Medical Coding

Comprehensive ICD-10-CM code reference with AI-powered search capabilities.

© 2025 ICD Code Compass. All rights reserved.

Browse

  • All Chapters
  • All Categories
  • Diagnoses

Tools

  • AI Code Search
ICD-10-CM codes are maintained by the CDC and CMS. This tool is for reference purposes only.
v1.0.0
ICD-10 Guide
ICD-10 CodesJ15

J15

Bacterial pneumonia, not elsewhere classified

BILLABLE STATUSNo
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/06/2025

Code Description

ICD-10 J15 is a used to indicate a diagnosis of bacterial pneumonia, not elsewhere classified.

Key Diagnostic Point:

Bacterial pneumonia, not elsewhere classified, is a type of pneumonia caused by various bacterial pathogens that do not fall under more specific categories of pneumonia. Clinically, patients may present with symptoms such as cough, fever, chills, chest pain, and difficulty breathing. The anatomy involved primarily includes the lungs, specifically the alveoli, where the infection leads to inflammation and consolidation of lung tissue. Disease progression can vary, with some patients experiencing rapid deterioration, particularly those with underlying health conditions or compromised immune systems. Diagnostic considerations include a thorough clinical evaluation, chest X-rays, and microbiological tests such as sputum cultures to identify the causative organism. It is essential to differentiate J15 from other pneumonia codes, such as J18 (pneumonia, unspecified), to ensure accurate diagnosis and treatment.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Diagnostic complexity: Requires identification of the specific bacterial pathogen, which may involve multiple tests.
  • Treatment complexity: Treatment may vary based on the causative organism and patient comorbidities.
  • Documentation requirements: Detailed clinical documentation is necessary to support the diagnosis and treatment plan.
  • Coding specificity: While J15 is specific, it may require additional codes for associated conditions or complications.

Audit Risk Factors

  • Common coding errors: Misidentifying the type of pneumonia or failing to document the causative organism.
  • Documentation gaps: Incomplete clinical notes that do not support the diagnosis of bacterial pneumonia.
  • Billing challenges: Potential denials if the documentation does not clearly justify the use of J15.

Specialty Focus

Medical Specialties

Pulmonology

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Infectious Disease

Documentation Requirements

Standard ICD-10-CM documentation requirements apply

Common Clinical Scenarios

Various clinical presentations within this specialty area

Billing Considerations

Follow specialty-specific billing guidelines

Related Codes

Child Codes

17 codes
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

Related CPT Codes

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

CPT Code

Clinical Scenario

Documentation Requirements

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

Bacterial pneumonia significantly impacts population health, contributing to morbidity and mortality, especially among vulnerable populations such as the elderly and those with chronic illnesses. Understanding the epidemiology of bacterial pneumonia can inform public health strategies and improve quality measures in healthcare settings. Effective management of this condition can lead to reduced healthcare utilization, including fewer hospitalizations and lower healthcare costs.

ICD-9 vs ICD-10

Bacterial pneumonia significantly impacts population health, contributing to morbidity and mortality, especially among vulnerable populations such as the elderly and those with chronic illnesses. Understanding the epidemiology of bacterial pneumonia can inform public health strategies and improve quality measures in healthcare settings. Effective management of this condition can lead to reduced healthcare utilization, including fewer hospitalizations and lower healthcare costs.

Reimbursement & Billing Impact

reimbursement and to use appropriate modifiers when necessary. Regular audits of coding practices can help identify areas for improvement and reduce the risk of billing errors.

Resources

Clinical References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Coding & Billing References

  • •
    ICD-10 Official Guidelines for J00-J99
  • •
    Clinical Documentation Requirements

Frequently Asked Questions

What specific conditions are covered by J15?

J15 encompasses bacterial pneumonia caused by various organisms such as Streptococcus pneumoniae, Staphylococcus aureus, and Haemophilus influenzae, among others. It is used when the specific organism is not classified under other codes.

When should J15 be used instead of related codes?

J15 should be used when the pneumonia is confirmed to be bacterial but does not fit into more specific categories. If the organism is identified, a more specific code should be used instead.

What documentation supports J15?

Documentation should include clinical findings, laboratory results confirming bacterial infection, imaging studies showing pneumonia, and treatment plans. Clear notes on the patient's symptoms and response to treatment are also essential.