ICD-10 Code J64 – Unspecified pneumoconiosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J64 – Unspecified pneumoconiosis
What it is
J64 identifies pneumoconiosis when the exact type is not documented. It refers to chronic lung disease caused by inhaled mineral dust, but the record does not specify the responsible exposure.
Clinical signs
Typical findings include chronic cough, shortness of breath, and reduced exercise tolerance. Imaging may show interstitial lung changes, but clinical features vary; refer to documentation.
When to use this code
Use J64 when the provider documents pneumoconiosis without naming coal workers’, silicosis, or another specific form. It also fits cases where dust-related lung disease is confirmed, but the type is not stated in the chart.
Do not assume a more specific code from exposure history alone. Code only what is clearly documented and supported by the provider’s diagnosis.
Do not use for
Do not use J64 if the record names a specific pneumoconiosis type or another dust-related lung disorder. Check documentation before defaulting to this unspecified code.
Coding tip
If the diagnosis is unclear, query for the exact pneumoconiosis type before assigning J64.