J98.2: Interstitial emphysema
J98.2 is a billable, specific ICD-10-CM code for interstitial emphysema. It is valid for submission on a claim.
Check J98.2 with the rest of the claim: free scrubberExcludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Mediastinal emphysema
Excludes1 inherited from the categories above J98.2
A category’s note binds every code beneath it.
Excludes2 inherited from the categories above J98.2
Not part of this code, but both may be coded when both are present.
Other codes that can never be billed with J98.2
Their own Excludes1 notes name this code, so the conflict is not listed above.
Risk adjustment
J98.2 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 280 Chronic Obstructive Pulmonary Disease, Interstitial Lung Disorders, and Other Chronic Lung Disorders0.319 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Medicare coverage
J98.2 is named in 6 Medicare coverage policies: 6 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
- A56717Billing and Coding: Respiratory Therapy (Respiratory Care)
- A56730Billing and Coding: Respiratory Therapy and Oximetry Services
- A57205Billing and Coding: Oximetry Services
Alphabetic index entries that lead here
- Pneumomediastinum
- Air›anterior mediastinum
- Disease, diseased›Hamman's(spontaneous mediastinal emphysema)
- Emphysema›interstitial
- Emphysema›mediastinal
- Emphysema›subcutaneous›nontraumatic
Code history
Unchanged in every release from FY2024 to FY2027.