ICD-10 Code J84.116 – Cryptogenic organizing pneumonia (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code J84.116 – Cryptogenic organizing pneumonia
What it is
J84.116 identifies cryptogenic organizing pneumonia, an inflammatory lung disorder with no known cause. It describes a specific diagnosis documented by the provider, not a general pneumonia or infection.
Clinical signs
Clinical features vary; refer to documentation. Typical references describe cough, shortness of breath, and patchy lung infiltrates, but you should code only when the provider confirms cryptogenic organizing pneumonia.
When to use this code
Use J84.116 when the record clearly states cryptogenic organizing pneumonia or COP. It may also apply when the provider documents organizing pneumonia as cryptogenic, idiopathic, or otherwise without an identified cause. Check documentation if the cause is uncertain.
Do not use for
Do not use this code for pneumonia with a known infectious cause, aspiration pneumonia, or other specified interstitial lung disease. If the chart does not confirm the cryptogenic diagnosis, check documentation.
Coding tip
Code the documented diagnosis exactly; do not assume cryptogenic organizing pneumonia from imaging alone.