2026 ICD-10-CM Diagnosis Code E58Dietary calcium deficiency

ICD-10-CM Codes›E00–E89›E50-E64›E58

ICD-10-CM E58
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

E58 is a billable ICD-10-CM diagnosis code for dietary calcium deficiency. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 640 through 641. Coders also document this condition as calcium deficiency. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Nutritional deficiencies.

Code Identity

ICD-10-CM Code
E58
Billable Status
Yes — Valid for Submission
Code Describes
Dietary calcium deficiency
Chapter
E50-E64
Other nutritional deficiencies

Code Classification

ChapterE00–E89Endocrine, nutritional and metabolic diseases
SectionE50-E64Other nutritional deficiencies
CategoryE58Dietary calcium deficiency
This CodeE58Dietary calcium deficiency

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Calcium deficiency
  • Dietary calcium deficiency
  • Inadequate intake of calcium
  • Myopathy due to calcium deficiency
  • Nutritional myopathy

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Type 1 Excludes

  • disorders of calcium metabolism E83.5
  • sequelae of calcium deficiency E64.8

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Deficiency, deficient
      • calcium (dietary)
    • Disturbance(s)
      • absorption
        • calcium
    • Hypocalcemia
      • dietary

Clinical ClassificationClinical

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

CCSR END007
Nutritional deficiencies
Default principal diagnosis: inpatient Yes · outpatient Yes

Patient EducationClinical

Calcium

Calcium is a mineral, a nutrient that you need (in small amounts) to keep your body healthy. You have more calcium in your body than any other mineral.

The full article covers:

  • What is calcium and why do I need it?
  • How do I get calcium?
  • How much calcium do I need?

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert E58 to ICD-9-CMHistory

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

ICD-9-CM
269.3 Mineral deficiency 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 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About E58Overview

Is E58 (Dietary calcium deficiency) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report dietary calcium deficiency on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does E58 group to?

When dietary calcium deficiency is the principal diagnosis on an inpatient stay, it groups to MS-DRG 640, 641, with relative weights from 0.7782 to 1.3356 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of E58?

Under the General Equivalence Mappings, dietary calcium deficiency converts to ICD-9-CM 269.3 (mineral deficiency NEC). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.