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ICD-10-CM 2027 diagnosis code

E89.830Post bariatric hypoglycemia

✓ Billable / specificNew for 2027CC — complication/comorbidity

E89.830 is a valid, billable ICD-10-CM code for post bariatric hypoglycemia. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

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

About E89.830

E89.830 is the ICD-10-CM diagnosis code for post bariatric hypoglycemia. It belongs to category E89 (postprocedural endocrine and metabolic complications and disorders, not elsewhere classified), block E89 (postprocedural endocrine and metabolic complications and disorders, not elsewhere classified) and chapter 4 (endocrine, nutritional and metabolic diseases). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within E89.83 (postprocedural hypoglycemia following a procedure), E89.830 is specifically for post bariatric hypoglycemia. Related codes cover other postprocedural hypoglycemia (E89.838).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 919 (Complications of Treatment with MCC, relative weight 1.763), DRG 920 (Complications of Treatment with CC, relative weight 0.9975) and DRG 921 (Complications of Treatment without CC/MCC, relative weight 0.6722), in MDC 21 (Injuries, Poisonings and Toxic Effects of Drugs), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It was added in FY2027, effective October 1, 2026.

Notes that apply from higher levels

Instructions written at a parent level also apply to E89.830.

› From E89.83 Postprocedural hypoglycemia following a procedure
Use additional code
  • code, if known, for hypoglycemia level (E16.A-)
› From E89 Postprocedural endocrine and metabolic complications and disorders, not elsewhere classified
Excludes2
  • intraoperative complications of endocrine system organ or structure (E36.0-, E36.1-, E36.8)

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

Alphabetic index entries

1 entries

Terms in the official ICD-10-CM index that lead to E89.830.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

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
  • FY2027 (effective 10/1/2026): Added

Common questions about E89.830

Is E89.830 billable?

Yes. E89.830 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can E89.830 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict E89.830 as a principal diagnosis.

Is E89.830 a CC or MCC?

E89.830 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does E89.830 group to?

E89.830 is used in the MS-DRG v44.0 logic for MS-DRG 919 (Complications of Treatment with MCC), MS-DRG 920 (Complications of Treatment with CC) and MS-DRG 921 (Complications of Treatment without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

Did E89.830 change for 2027?

Yes. For FY2027 (effective October 1, 2026) it was added to the code set.