ICD-10-CM > J00-J99 > J96-J99 > J98 > J98.2 J98.2 Interstitial emphysema Billable/Specific Copy Code Copy Description Applicable To Mediastinal emphysema Type 1 Excludes emphysema NOS (J43.9)emphysema in newborn (P25.0)surgical emphysema (subcutaneous) (T81.82)traumatic subcutaneous emphysema (T79.7)