ICD-10-CM 2027 diagnosis code
E79Disorders of purine and pyrimidine metabolism
E79 is a header code, so it can't be reported by itself. Choose one of the 5 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 E79
E79 is the ICD-10-CM diagnosis code for disorders of purine and pyrimidine metabolism. It belongs to 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 5 subcodes must be used instead.
To report this condition, pick the subcode that matches the documentation: E79.0 (disease), E79.1 (syndrome), E79.2 (deficiency), E79.8 (metabolism) and E79.9 (unspecified).
Don't report E79 together with the conditions in its Excludes1 note: Ataxia-telangiectasia (Q87.19), Bloom's syndrome (Q82.8), Cockayne's syndrome (Q87.19), calculus of kidney (N20.0) and 7 more.
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 E79
Coding notes
Notes that apply from higher levels
Instructions written at a parent level also apply to E79.
Broader instructions also apply from E70-E88 Metabolic disorders and Chapter 4: Endocrine, nutritional and metabolic diseases.
Codes whose notes reference E79
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 E79
Is E79 billable?
- No. E79 is a header code. Report one of its more specific subcodes instead.