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J98.2

✓ Billable

Interstitial emphysema

Diseases of the respiratory system (J00-J99)

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Also Known As

Mediastinal emphysema

❌ Excludes1

direct

Cannot be coded with J98.2

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

❌ Excludes1

inherited from J98

Rules from parent category J98: Other respiratory disorders

  • • newborn apnea (P28.4-)
  • • newborn sleep apnea (P28.3-)

⚠️ Excludes2

inherited from J98

Rules from parent category J98: Other respiratory disorders

  • • apnea NOS (R06.81)
  • • sleep apnea (G47.3-)

📋 Code Instructions

from J98
  • • code to identify:
  • • exposure to environmental tobacco smoke (Z77.22)
  • • exposure to tobacco smoke in the perinatal period (P96.81)
  • • history of tobacco dependence (Z87.891)
  • • occupational exposure to environmental tobacco smoke (Z57.31)
  • • tobacco dependence (F17.-)
  • • tobacco use (Z72.0)

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Code Information

CodeJ98.2
BillableYes
ParentJ98
CategoryDiseases of the respiratory system (J00-J99)
Excludes16 rule(s)
Excludes22 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)