ICD-10 Code J63.3 – Graphite fibrosis (of lung) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J63.3 – Graphite fibrosis (of lung)
What it is
J63.3 identifies graphite fibrosis of the lung, a pneumoconiosis caused by inhalation of graphite dust. Use it when documentation links chronic lung scarring to graphite exposure.
Clinical signs
Clinical features vary; refer to documentation. Commonly, records describe chronic cough, shortness of breath, and imaging evidence of interstitial lung fibrosis in a worker exposed to graphite dust.
When to use this code
Use this code when the provider documents graphite-related pulmonary fibrosis or graphite pneumoconiosis. It fits occupational lung disease cases where exposure history and lung scarring are clearly connected. Check documentation if the chart only notes dust exposure without a confirmed diagnosis.
Do not use for
Do not use J63.3 for nonspecific pulmonary fibrosis without a documented graphite cause. It is also not appropriate for other dust-related lung diseases unless graphite exposure is specifically identified.
Coding tip
Confirm both the exposure source and the lung diagnosis in the record before assigning J63.3.