ICD-10-CM Code J15.6

Pneumonia due to other Gram-negative bacteria

Version 2020 Billable Code

Valid for Submission

J15.6 is a billable code used to specify a medical diagnosis of pneumonia due to other gram-negative bacteria. The code is valid for the year 2020 for the submission of HIPAA-covered transactions. The ICD-10-CM code J15.6 might also be used to specify conditions or terms like achromobacter pneumonia, actinobacillus infection, bacterial infection due to proteus mirabilis, bacterial infection due to serratia, bronchopneumonia due to proteus mirabilis, infection caused by enterobacter, etc

Short Description:Pneumonia due to other Gram-negative bacteria
Long Description:Pneumonia due to other Gram-negative bacteria

Tabular List of Diseases and Injuries

The Tabular List of Diseases and Injuries is a list of ICD-10 codes, organized "head to toe" into chapters and sections with guidance for inclusions, exclusions, descriptions and more. The following references are applicable to the code J15.6:

Inclusion Terms

Inclusion Terms
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
  • Pneumonia due to other aerobic Gram-negative bacteria
  • Pneumonia due to Serratia marcescens

Index to Diseases and Injuries

The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code J15.6 are found in the index:


The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

  • Achromobacter pneumonia
  • Actinobacillus infection
  • Bacterial infection due to Proteus mirabilis
  • Bacterial infection due to Serratia
  • Bronchopneumonia due to Proteus mirabilis
  • Infection caused by Enterobacter
  • Pneumonia caused by Enterobacter
  • Pneumonia caused by Serratia
  • Pneumonia due to aerobic bacteria
  • Pneumonia due to Gram negative bacteria
  • Pneumonia due to Proteus mirabilis
  • Proteus pneumonia
  • Pulmonary actinobacillosis

Diagnostic Related Groups

The ICD-10 code J15.6 is grouped in the following groups for version MS-DRG V37.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC).
applicable from 10/01/2019 through 09/30/2020.


Convert J15.6 to ICD-9

  • 482.83 - Pneumo oth grm-neg bact

Code Classification

  • Diseases of the respiratory system (J00–J99)
    • Influenza and pneumonia (J09-J18)
      • Bacterial pneumonia, not elsewhere classified (J15)

Code History

  • FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016
    (First year ICD-10-CM implemented into the HIPAA code set)
  • FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
  • FY 2018 - Code Updated, effective from 10/1/2017 through 9/30/2018
    • New Description: Pneumonia due to other Gram-negative bacteria
    • Previous Description: Pneumonia due to other aerobic Gram-negative bacteria
  • FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
  • FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020

Information for Patients


Pneumonia is an infection in one or both of the lungs. Many germs, such as bacteria, viruses, and fungi, can cause pneumonia. You can also get pneumonia by inhaling a liquid or chemical. People most at risk are older than 65 or younger than 2 years of age, or already have health problems.

Symptoms of pneumonia vary from mild to severe. See your doctor promptly if you

  • Have a high fever
  • Have shaking chills
  • Have a cough with phlegm that doesn't improve or gets worse
  • Develop shortness of breath with normal daily activities
  • Have chest pain when you breathe or cough
  • Feel suddenly worse after a cold or the flu

Your doctor will use your medical history, a physical exam, and lab tests to diagnose pneumonia. Treatment depends on what kind you have. If bacteria are the cause, antibiotics should help. If you have viral pneumonia, your doctor may prescribe an antiviral medicine to treat it.

Preventing pneumonia is always better than treating it. Vaccines are available to prevent pneumococcal pneumonia and the flu. Other preventive measures include washing your hands frequently and not smoking.

NIH: National Heart, Lung, and Blood Institute

[Learn More]