ICD-10 Code J63.1 – Bauxite fibrosis (of lung) (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J63.1 – Bauxite fibrosis (of lung)
What it is
Bauxite fibrosis of the lung is a pneumoconiosis caused by inhalation of bauxite dust. It refers to fibrotic lung disease linked to occupational exposure, so you should code the documented diagnosis rather than the exposure alone.
Clinical signs
Clinical features vary; refer to documentation. Typical references describe chronic cough, shortness of breath, and imaging evidence of interstitial or fibrotic lung change in an exposed worker.
When to use this code
Use J63.1 when the provider documents bauxite fibrosis, bauxite pneumoconiosis, or fibrosis of the lung due to bauxite exposure. It fits occupational lung disease records where the causal dust is identified. If the chart only notes dust exposure without disease, do not assign this code.
Do not use for
Do not use this code for nonspecific pulmonary fibrosis, asthma, or other pneumoconioses unless bauxite is specifically documented. Check documentation if the record does not clearly link the fibrosis to bauxite.
Coding tip
Verify both the lung fibrosis and the bauxite exposure in the provider’s note before coding J63.1.