ICD-10-CM 2027 diagnosis code
D72.11Hypereosinophilic syndrome [HES]
D72.11 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.
Code last changed in FY2021 (effective October 1, 2020). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About D72.11
D72.11 is the ICD-10-CM diagnosis code for hypereosinophilic syndrome [HES]. It belongs to category D72 (other disorders of white blood cells), block D70-D77 (other disorders of blood and blood-forming organs) and chapter 3 (diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.
Within D72.1 (eosinophilia), D72.11 is specifically for hypereosinophilic syndrome [HES]. Related codes cover unspecified (D72.10), drug rash with eosinophilia and systemic symptoms syndrome (D72.12), in diseases classified elsewhere (D72.18) and other eosinophilia (D72.19).
To report this condition, pick the subcode that matches the documentation: D72.110 ([IHES]), D72.111 ([LHES]), D72.118 (syndrome) and D72.119 (unspecified).
It was added in FY2021, effective October 1, 2020.
Specific codes under D72.11
Notes that apply from higher levels
Instructions written at a parent level also apply to D72.11.
› From D72.1 Eosinophilia
Broader instructions also apply from Chapter 3: Diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2021 (effective 10/1/2020): Added
- No changes since FY2021.
Common questions about D72.11
Is D72.11 billable?
- No. D72.11 is a header code. Report one of its more specific subcodes instead.