2027 ICD-10-CM Diagnosis Code E36.8Other intraoperative complications of endocrine system

ICD-10-CM Codes›E00–E89›E36›E36

ICD-10-CM E36.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

E36.8 is a billable ICD-10-CM diagnosis code for other intraoperative complications of endocrine system. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 919 through 921. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Postprocedural or postoperative endocrine or metabolic complication.

Code Identity

ICD-10-CM Code
E36.8
Billable Status
Yes — Valid for Submission
Code Describes
Other intraoperative complications of endocrine system
Short Description
Other intraoperative complications of endocrine system
Same as the full description in the CMS dataset.
Parent Code
E36
Intraoperative complications of endocrine system

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE36Intraoperative complications of endocrine system
CategoryE36Intraoperative complications of endocrine system
This CodeE36.8Other intraoperative complications of endocrine system

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to E36.8: its own notes plus those printed at E36 and Chapter 4. A note printed at a category, block or chapter applies to every code under it.

Excludes1

Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.

From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • transitory endocrine and metabolic disorders specific to newborn (P70-P74)

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From E36 Intraoperative complications of endocrine system applies to 5 codes
  • postprocedural endocrine and metabolic complications and disorders, not elsewhere classified (E89.-)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

  • code, if applicable, to further specify disorder

Notes

General instructions on how these codes are used.

From Chapter 4 (E00-E89) Endocrine, nutritional and metabolic diseases applies to 973 codes
  • All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name E36.8, its category, or a range that includes it.

Excludes2 3

These codes carry an Excludes2 note naming E36.8: its condition is not part of those codes, and both may be reported when the patient has both.

  • E89 Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified
    intraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8)
  • Block T80-T88 Complications of surgical and medical care, not elsewhere classified
    intraoperative and postprocedural complications of specified body systems (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95.6-, J95.7, K91.6-, L76.-, M96.-, N99.-) names E36.-, which includes this code
  • T81 Complications of procedures, not elsewhere classified
    intraoperative and postprocedural complications of specific body system (D78.-, E36.-, E89.-, G97.3-, G97.4, H59.3-, H59.-, H95.2-, H95.3, I97.4-, I97.5, J95, K91.-, L76.-, M96.-, N99.-) names E36.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR END014
Postprocedural or postoperative endocrine or metabolic complication
Default principal diagnosis: inpatient Yes · outpatient Yes

Convert E36.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
998.89 Oth spcf cmplc procd NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About E36.8Overview

What is the ICD-10 code for other intraoperative complications of endocrine system?

The ICD-10-CM code for other intraoperative complications of endocrine system is E36.8 (sometimes written as E368). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is E36.8 (Intraoperative complications of endocrine system) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other intraoperative complications of endocrine system on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does E36.8 group to?

When other intraoperative complications of endocrine system is the principal diagnosis on an inpatient stay, it groups to MS-DRG 920, 919, 921, with relative weights from 0.6719 to 1.7624 depending on complications. Higher weights mean higher Medicare reimbursement.

Does E36.8 need an additional code?

When the condition applies, yes. The Use Additional Code note reads: code, if applicable, to further specify disorder. The additional code is reported after E36.8.

What is the ICD-9 equivalent of E36.8?

Under the General Equivalence Mappings, other intraoperative complications of endocrine system converts to ICD-9-CM 998.89 (oth spcf cmplc procd NEC). The mapping is approximate, so confirm the match fits the documentation.