ICD-10 Code E84.8 – Cystic fibrosis with other manifestations (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E84.8 – Cystic fibrosis with other manifestations
What it is
This code identifies cystic fibrosis when the record documents manifestations not captured by the more specific CF codes. Use it for confirmed cystic fibrosis with additional organ involvement that does not fit another listed subtype.
Clinical signs
Clinical features vary; refer to documentation. Commonly recorded findings may include chronic respiratory disease, pancreatic involvement, or other CF-related complications, but the exact manifestation must be stated or clearly supported in the chart.
When to use this code
Use E84.8 when the patient has confirmed cystic fibrosis and the provider documents another manifestation that is not indexed to a more specific code. It is appropriate when the chart supports CF plus an additional complication, but no better-matching subtype is available. Check documentation if the manifestation is unclear.
Do not use for
Do not use this code for cystic fibrosis with a more specific manifestation already documented elsewhere in the code set. Do not assign it for suspected CF or for unrelated conditions without a documented cystic fibrosis diagnosis.
Coding tip
Confirm the exact CF manifestation in the note before coding, and choose a more specific code whenever documentation supports one.