ICD-10 Code J98.3 – Compensatory emphysema (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J98.3 – Compensatory emphysema
What it is
Compensatory emphysema means overexpansion of remaining lung tissue, usually after loss or collapse of another part of the lung. It describes a structural change, not classic chronic obstructive emphysema.
Clinical signs
Findings may include increased lung volume in the affected region and shift of adjacent structures on imaging. Clinical features vary; refer to documentation.
When to use this code
Use J98.3 when the provider documents compensatory emphysema as the diagnosed condition. It may appear after lobectomy, atelectasis, or other loss of functioning lung tissue. Code it only when the record clearly distinguishes this from other emphysema types.
Do not use for
Do not use this code for COPD, panlobular emphysema, centrilobular emphysema, or nonspecific emphysema unless documentation specifically supports compensatory emphysema. Check documentation.
Coding tip
Query the provider if the note says “emphysema” without specifying whether it is compensatory.