ICD-10-CM 2027 diagnosis code

E36Intraoperative complications of endocrine system

Not billable — use a more specific code

E36 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS, effective October 1, 2026. Updated September 29, 2026. About our data

About E36

E36 is the ICD-10-CM diagnosis code for intraoperative complications of endocrine system. It belongs to block E36 (intraoperative complications of endocrine system) 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.

To report this condition, pick the subcode that matches the documentation: E36.0 (procedure), E36.1 (procedure) and E36.8 (system).

The conditions in its Excludes2 note aren't part of E36, but may be coded alongside it if the patient has both: postprocedural endocrine and metabolic complications and disorders, not elsewhere classified (E89.-).

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 E36

Coding notes

Excludes2Not included here — may be reported together if both conditions exist

postprocedural endocrine and metabolic complications and disorders, not elsewhere classified (E89.-)

Notes that apply from higher levels

Instructions written at a parent level also apply to E36.

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

Codes whose notes reference E36

T81Excludes2

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 E36

Is E36 billable?: No. E36 is a header code. Report one of its more specific subcodes instead.