Skip to content
Dx

ICD-10-CM 2027 diagnosis code

E16.AHypoglycemia level

Not billable — use a more specific code

E16.A is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code last changed in FY2025 (effective October 1, 2024). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About E16.A

E16.A is the ICD-10-CM diagnosis code for hypoglycemia level. It belongs to category E16 (other disorders of pancreatic internal secretion), block E15-E16 (other disorders of glucose regulation and pancreatic internal secretion) 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 E16 (other disorders of pancreatic internal secretion), E16.A is specifically for hypoglycemia level. Related codes cover drug-induced hypoglycemia without coma (E16.0), other hypoglycemia (E16.1), hypoglycemia, unspecified (E16.2), increased secretion of glucagon (E16.3), increased secretion of gastrin (E16.4), other specified disorders of pancreatic internal secretion (E16.8) and disorder of pancreatic internal secretion, unspecified (E16.9).

To report this condition, pick the subcode that matches the documentation: E16.A1 (1), E16.A2 (2) and E16.A3 (3).

It was added in FY2025, effective October 1, 2024.

Specific codes under E16.A

Notes that apply from higher levels

Instructions written at a parent level also apply to E16.A.

Broader instructions also apply from Chapter 4: Endocrine, nutritional and metabolic diseases.

Codes whose notes reference E16.A

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2025 (effective 10/1/2024): Added
  • No changes since FY2025.

Common questions about E16.A

Is E16.A billable?

No. E16.A is a header code. Report one of its more specific subcodes instead.