Skip to content
Dx

ICD-10-CM 2027 diagnosis code

E04.9Nontoxic goiter, unspecified

✓ Billable / specific

E04.9 is a valid, billable ICD-10-CM code for nontoxic goiter, unspecified. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.

Looking up by condition? See ICD-10 code for Goiter, ICD-10 code for Nodular goiter, ICD-10 code for Nontoxic goiter, ICD-10 code for Substernal thyroid.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About E04.9

E04.9 is the ICD-10-CM diagnosis code for nontoxic goiter, unspecified. It belongs to category E04 (other nontoxic goiter), block E00-E07 (disorders of thyroid gland) 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 E04, choose E04.9 (Nontoxic goiter, unspecified) only when documentation doesn't support a more specific option: nontoxic diffuse goiter (E04.0), nontoxic single thyroid nodule (E04.1), nontoxic multinodular goiter (E04.2) and other specified nontoxic goiter (E04.8).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 643 (Endocrine Disorders with MCC, relative weight 1.6139), DRG 644 (Endocrine Disorders with CC, relative weight 1.0044) and DRG 645 (Endocrine Disorders without CC/MCC, relative weight 0.7459), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), 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 has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Before ICD-10, this condition was coded in ICD-9-CM as 241.9 (unspecified nontoxic nodular goiter).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Goiter NOS
  • Nodular goiter (nontoxic) NOS

Notes that apply from higher levels

Instructions written at a parent level also apply to E04.9.

› From E04 Other nontoxic goiter
Excludes1
  • congenital goiter (NOS) (diffuse) (parenchymatous) (E03.0)
  • iodine-deficiency related goiter (E00-E02)

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

Alphabetic index entries

7 entries

Terms in the official ICD-10-CM index that lead to E04.9.

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.

ICD-9-CM equivalent

Converter →
  • 241.9Unspecified nontoxic nodular goiterapproximate

From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.

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
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about E04.9

Is E04.9 billable?

Yes. E04.9 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can E04.9 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict E04.9 as a principal diagnosis.

Is E04.9 a CC or MCC?

No. E04.9 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does E04.9 group to?

E04.9 is used in the MS-DRG v44.0 logic for MS-DRG 643 (Endocrine Disorders with MCC), MS-DRG 644 (Endocrine Disorders with CC) and MS-DRG 645 (Endocrine Disorders without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.

What is the ICD-9 code for E04.9?

The CMS General Equivalence Mappings map E04.9 to ICD-9-CM 241.9.