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ICD-10-CM 2027 diagnosis code

E59Dietary selenium deficiency

✓ Billable / specific

E59 is a valid, billable ICD-10-CM code for dietary selenium deficiency. 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 Selenium deficiency.

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 E59

E59 is the ICD-10-CM diagnosis code for dietary selenium deficiency. It belongs to block E50-E64 (other nutritional deficiencies) 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.

Don't report E59 together with the conditions in its Excludes1 note: sequelae of selenium deficiency (E64.8).

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 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC, relative weight 1.3395) and DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without MCC, relative weight 0.7865), 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 269.3 (mineral deficiency, not elsewhere classified).

Coding notes

Applicable toConditions and synonyms classified to this code
  • Keshan disease
Excludes1Not coded here — never report together with this code
  • sequelae of selenium deficiency (E64.8)

Notes that apply from higher levels

Instructions written at a parent level also apply to E59.

Broader instructions also apply from E50-E64 Other nutritional deficiencies and Chapter 4: Endocrine, nutritional and metabolic diseases.

Alphabetic index entries

4 entries

Terms in the official ICD-10-CM index that lead to E59.

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 →
  • 269.3Mineral deficiency, not elsewhere classifiedapproximate

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 E59

Is E59 billable?

Yes. E59 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can E59 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict E59 as a principal diagnosis.

Is E59 a CC or MCC?

No. E59 is neither a CC nor an MCC under MS-DRG v44.0.

What DRG does E59 group to?

E59 is used in the MS-DRG v44.0 logic for MS-DRG 640 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes with MCC) and MS-DRG 641 (Miscellaneous Disorders of Nutrition, Metabolism, Fluids and Electrolytes without 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 E59?

The CMS General Equivalence Mappings map E59 to ICD-9-CM 269.3.