MCMCB Pro
E58

E58Dietary calcium deficiency

Billable / specific codeICD-10-CM

E58 is a billable, specific ICD-10-CM code for dietary calcium deficiency. It is valid for submission on a claim.

Excludes1 — never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

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

Other codes that can never be billed with E58

These codes carry an Excludes1 note pointing at E58. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading E58 alone.

  • R79.0Abnormal level of blood mineral
  • E83Disorders of mineral metabolism

Risk adjustment

E58 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

How E58 is indexed

Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to E58.

  • Deficiency, deficientcalcium(dietary)
  • Hypocalcemiadietary
  • Disturbanceabsorptioncalcium

Questions about E58

Is E58 a billable ICD-10-CM code?
Yes. E58 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does E58 sit in the tabular list?
Endocrine, nutritional and metabolic diseases (E00-E89), in the block Other nutritional deficiencies (E50-E64).
What cannot be coded together with E58?
E58 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.