E84
Cystic fibrosis
E84 is a non-billable ICD-10-CM code category for cystic fibrosis. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are E84.0 Cystic fibrosis with pulmonary manifestations; E84.1 Cystic fibrosis with intestinal manifestations; E84.8 Cystic fibrosis with other manifestations and E84.9 Cystic fibrosis, unspecified. Its coding notes include a Code also instruction, 6 Excludes1 entries and 1 Excludes2 entry.
Code also
Two codes may be needed to describe the condition. This note gives no sequencing order.
- exocrine pancreatic insufficiency (K86.81)
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Also from chapter/block level (6 notes)
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Includes
Further defines or gives examples of the content of the category.
- mucoviscidosis
Notes
Also from chapter/block level (1 note)
- All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.