ICD-10 Diagnosis Code J98.5

Diseases of mediastinum, not elsewhere classified

Diagnosis Code J98.5

ICD-10: J98.5
Short Description: Diseases of mediastinum, not elsewhere classified
Long Description: Diseases of mediastinum, not elsewhere classified
This is the 2018 version of the ICD-10-CM diagnosis code J98.5

Not Valid for Submission
The code J98.5 is a "header" and not valid for submission for HIPAA-covered transactions.

Replaced Code Additional informationCallout TooltipReplaced Code
The National Center for Health Statistics (NCHS) has published an update to the ICD-10-CM diagnosis codes which became effective October 1, 2017. This codes was replaced for the FY 2018 (October 1, 2017-September 30, 2018).

This code was replaced in the 2018 ICD-10 code set with the code(s) listed below.
  • J98.51 - Mediastinitis
  • J98.59 - Other diseases of mediastinum, not elsewhere classified

Code Classification
  • Diseases of the respiratory system (J00–J99)
    • Other diseases of the respiratory system (J96-J99)
      • Other respiratory disorders (J98)

Information for Medical Professionals

Index of Diseases and Injuries
References found for the code J98.5 in the Index of Diseases and Injuries:


Information for Patients


Chest Injuries and Disorders

The chest is the part of the body between your neck and your abdomen. It includes the ribs and breastbone. Inside your chest are several organs, including the heart, lungs, and esophagus. The pleura, a large thin sheet of tissue, lines the inside of the chest cavity.

Chest injuries and disorders include

  • Heart diseases
  • Lung diseases and collapsed lung
  • Pleural disorders
  • Esophagus disorders
  • Broken ribs
  • Thoracic aortic aneurysms
  • Disorders of the mediastinum, the space between the lungs, breastbone, and spine

  • Chest tube insertion (Medical Encyclopedia)
  • Costochondritis (Medical Encyclopedia)
  • Mediastinal tumor (Medical Encyclopedia)
  • Pectus excavatum (Medical Encyclopedia)
  • Rib fracture - aftercare (Medical Encyclopedia)


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