J43.0
✓ BillableUnilateral pulmonary emphysema [MacLeod's syndrome]
Diseases of the respiratory system (J00-J99)
Also Known As
Swyer-James syndromeUnilateral emphysemaUnilateral hyperlucent lungUnilateral pulmonary artery functional hypoplasiaUnilateral transparency of lung
❌ Excludes1
inherited from J43Rules from parent category J43: Emphysema
- • compensatory emphysema (J98.3)
- • interstitial emphysema (J98.2)
- • mediastinal emphysema (J98.2)
- • neonatal interstitial emphysema (P25.0)
- • surgical (subcutaneous) emphysema (T81.82)
⚠️ Excludes2
inherited from J43Rules from parent category J43: Emphysema
- • emphysema due to inhalation of chemicals, gases, fumes or vapors (J68.4)
- • emphysema with chronic (obstructive) bronchitis (J44.-)
- • emphysematous (obstructive) bronchitis (J44.-)
- • traumatic subcutaneous emphysema (T79.7)
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CodeJ43.0
BillableYes
ParentJ43
CategoryDiseases of the respiratory system (J00-J99)
Excludes15 rule(s)
Excludes24 note(s)
Data Source
CMS ICD-10-CM 2026 Tabular List
Updated October 1, 2025 (FY2026)