ICD-10 Code J66.2 – Cannabinosis (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J66.2 – Cannabinosis
What it is
J66.2 identifies cannabinosis, an occupational lung disorder linked to exposure to dust from cannabis plant material. Use it when documentation specifically names this diagnosis.
Clinical signs
Clinical features vary; refer to documentation. Reported findings may include respiratory symptoms after repeated exposure to cannabis dust, but you should not infer the diagnosis without clear provider wording.
When to use this code
Use J66.2 when the record states cannabinosis or a similar dust-related pulmonary condition caused by cannabis exposure. Code it only when the clinician links the respiratory problem to that exposure. If the note is nonspecific, check documentation before assigning the code.
Do not use for
Do not use this code for general marijuana use, intoxication, or unrelated respiratory complaints. If the chart does not clearly document cannabinosis, choose a different, better-supported diagnosis.
Coding tip
Verify that the provider documents both the lung condition and the cannabis dust exposure before coding J66.2.