ICD-10 Code J67.9 – Hypersensitivity pneumonitis due to unspecified organic dust (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J67.9 – Hypersensitivity pneumonitis due to unspecified organic dust
What it is
J67.9 identifies hypersensitivity pneumonitis caused by an unspecified organic dust exposure. Use it when the record confirms this immune-mediated lung inflammation but does not name the exact dust source.
Clinical signs
Typical findings include cough, shortness of breath, and symptoms that follow inhalation exposure to organic material. Imaging or pulmonary testing may support the diagnosis, but clinical features vary; refer to documentation.
When to use this code
Use J67.9 when the provider documents hypersensitivity pneumonitis and links it to organic dust, but the specific antigen is not stated. It also fits cases described as allergic alveolitis from an unspecified organic exposure. If the source is identified, code the more specific option instead.
Do not use for
Do not use this code for hypersensitivity pneumonitis with a named exposure such as bird, mold, or other specific organic dust. Check documentation if the condition is only suspected or if another lung disorder is documented.
Coding tip
Look for the exact exposure term in the note; unspecified is appropriate only when the organic dust source is not identified.