E84
⚠ Non-billable
Cystic fibrosis
ICD-10-CM · FY2026 · Endocrine, Nutritional and Metabolic Diseases
Code
E84
System
ICD-10-CM
Billable
No — use specific code
Effective
FY2026
Chapter
Endocrine, Nutritional and Metabolic Diseases
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code E84?
ICD-10-CM code E84 represents Cystic fibrosis. It is a non-billable header code requiring a more specific subcategory in the Endocrine, Nutritional and Metabolic Diseases chapter, effective October 1, 2025 – September 30, 2026.
Is E84 billable?
No. E84 is a non-billable header. Select a more specific subcategory for claims submission.
What chapter is E84 in?
E84 belongs to the Endocrine, Nutritional and Metabolic Diseases chapter (E00–E89) of ICD-10-CM.
Related codes in the E84 category
E84.0
Cystic fibrosis with pulmonary manifestations
Billable
E84.1
Cystic fibrosis with intestinal manifestations
Non-billable
E84.8
Cystic fibrosis with other manifestations
Billable
E84.9
Cystic fibrosis, unspecified
Billable
E84.11
Meconium ileus in cystic fibrosis
Billable
E84.19
Cystic fibrosis with other intestinal manifestations
Billable
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