ICD-10 Code J67.5 – Mushroom-worker’s lung (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J67.5 – Mushroom-worker’s lung
What it is
J67.5 identifies hypersensitivity pneumonitis caused by exposure to mushroom spores or mushroom-growing environments. Use it for an occupational allergic lung reaction linked to this specific exposure.
Clinical signs
Typical findings include cough, shortness of breath, and sometimes fever or malaise after exposure. Clinical features vary; refer to documentation for the exposure history and compatible pulmonary findings.
When to use this code
Use this code when the record clearly documents mushroom-worker’s lung, hypersensitivity pneumonitis from mushroom exposure, or a similar occupational diagnosis tied to mushroom cultivation. Confirm the condition is attributed to mushroom spores, compost, or growing-room exposure. Check documentation if the cause is not explicit.
Do not use for
Do not use J67.5 for nonspecific interstitial lung disease, asthma, or respiratory symptoms without a documented mushroom-related hypersensitivity diagnosis. Do not assign it when another inhaled antigen is identified.
Coding tip
Code the specific occupational exposure only when the provider links the lung disease to mushroom work.