ICD-10-CM 2027 diagnosis code
E74.2Disorders of galactose metabolism
E74.2 is a header code, so it can't be reported by itself. Choose one of the 3 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 E74.2
E74.2 is the ICD-10-CM diagnosis code for disorders of galactose metabolism. It belongs to category E74 (other disorders of carbohydrate metabolism), 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 3 subcodes must be used instead.
Within E74 (other disorders of carbohydrate metabolism), E74.2 is specifically for disorders of galactose metabolism. Related codes cover glycogen storage disease (E74.0), disorders of fructose metabolism (E74.1), other disorders of intestinal carbohydrate absorption (E74.3), disorders of pyruvate metabolism and gluconeogenesis (E74.4), other specified disorders of carbohydrate metabolism (E74.8) and disorder of carbohydrate metabolism, unspecified (E74.9).
To report this condition, pick the subcode that matches the documentation: E74.20 (unspecified), E74.21 (galactosemia) and E74.29 (metabolism).
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 E74.2
Notes that apply from higher levels
Instructions written at a parent level also apply to E74.2.
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 E74.2
Is E74.2 billable?
- No. E74.2 is a header code. Report one of its more specific subcodes instead.