2027 ICD-10-CM Diagnosis Code E89.830Post bariatric hypoglycemia

ICD-10-CM Codes›E00–E89›E89›E89

ICD-10-CM E89.830
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

E89.830 is a billable ICD-10-CM diagnosis code for post bariatric hypoglycemia. 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. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 26 closely related codes.

Code Identity

ICD-10-CM Code
E89.830
Billable Status
Yes — Valid for Submission
Code Describes
Post bariatric hypoglycemia
Short Description
Post bariatric hypoglycemia
Same as the full description in the CMS dataset.
Parent Code
E89.83
Postprocedural hypoglycemia following a procedure

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified
CategoryE89Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified
This CodeE89.830Post bariatric hypoglycemia

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to E89.830: its own notes plus those printed at E89.83, E89, 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 E89 Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified applies to 17 codes
  • intraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8)

Use Additional Code

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

From E89.83 Postprocedural hypoglycemia following a procedure applies to 2 codes
  • code, if known, for hypoglycemia level (E16.A-)

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 E89.830, its category, or a range that includes it.

Excludes2 4

These codes carry an Excludes2 note naming E89.830: its condition is not part of those codes, and both may be reported when the patient has both.

  • E36 Intraoperative complications of endocrine system
    postprocedural endocrine and metabolic complications and disorders, not elsewhere classified (E89.-) names E89.-, which includes this code
  • 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 E89.-, 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 E89.-, which includes this code
  • Z90 Acquired absence of organs, not elsewhere classified
    postprocedural absence of endocrine glands (E89.-) names E89.-, which includes this code

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

Code History & ChangesHistory

New Code E89.830 was added to the ICD-10-CM code set for FY 2027, effective October 1, 2026.

Replacement E89.830 replaces the following previously assigned code(s):

  • E89.89 - Oth postproc endocrine and metabolic comp and disorders
FY 2027AddedAdded to the ICD-10-CM code setEffective October 1, 2026.
FY 2027CurrentRevised in the current code setEffective October 1, 2026 through September 30, 2027.

Questions About E89.830Overview

What is the ICD-10 code for post bariatric hypoglycemia?

The ICD-10-CM code for post bariatric hypoglycemia is E89.830 (sometimes written as E89830). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is E89.830 (Postprocedural hypoglycemia following a procedure) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report post bariatric hypoglycemia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does E89.830 group to?

When post bariatric hypoglycemia 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.

Is E89.830 a CC or MCC?

CMS lists E89.830 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 26 closely related codes in its exclusion list.

Does E89.830 need an additional code?

When the condition applies, yes. The Use Additional Code note at E89.83, which applies to E89.830, reads: code, if known, for hypoglycemia level (E16.A-). The additional code is reported after E89.830.