ICD-10-CM 2027 diagnosis code

E84.1Cystic fibrosis with intestinal manifestations

Not billable — use a more specific code

E84.1 is a header code, so it can't be reported by itself. Choose one of the 2 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About E84.1

E84.1 is the ICD-10-CM diagnosis code for cystic fibrosis with intestinal manifestations. It belongs to category E84 (cystic fibrosis), block E70-E88 (metabolic disorders) and chapter 4 (endocrine, nutritional and metabolic diseases). It is a header code, so it can't be reported by itself; one of its 2 subcodes must be used instead.

Within E84 (cystic fibrosis), E84.1 is specifically for cystic fibrosis with intestinal manifestations. Related codes cover with pulmonary manifestations (E84.0), with other manifestations (E84.8) and unspecified (E84.9).

To report this condition, pick the subcode that matches the documentation: E84.11 (fibrosis) and E84.19 (manifestations).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under E84.1

Notes that apply from higher levels

Instructions written at a parent level also apply to E84.1.

› From E84 Cystic fibrosis

Includes

mucoviscidosis

Code also

exocrine pancreatic insufficiency (K86.81)

Broader instructions also apply from E70-E88 Metabolic disorders and Chapter 4: Endocrine, nutritional and metabolic diseases.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about E84.1

Is E84.1 billable?: No. E84.1 is a header code. Report one of its more specific subcodes instead.