J98..2 Interstitial emphysema

Billable

Includes

  • Mediastinal emphysema

Excludes 1 (cannot be coded together)

  • emphysema NOS (J43.9)
  • emphysema in newborn (P25.0)
  • surgical emphysema (subcutaneous) (T81.82)
  • traumatic subcutaneous emphysema (T79.7)

Last reviewed: September 2026