MCMedicalCodingSoftware
R79.0

R79.0: Abnormal level of blood mineral

Billable / specific codeICD-10-CM

R79.0 is a billable, specific ICD-10-CM code for abnormal level of blood mineral. It is valid for submission on a claim.

Check R79.0 with the rest of the claim: free scrubber

Excludes1: never code together

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

  • abnormal level of lithium (R78.89)
  • disorders of mineral metabolism (E83.-)
  • neonatal hypomagnesemia (P71.2)
  • nutritional mineral deficiency (E58-E61)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Abnormal blood level of cobalt
  • Abnormal blood level of copper
  • Abnormal blood level of iron
  • Abnormal blood level of magnesium
  • Abnormal blood level of mineral NEC
  • Abnormal blood level of zinc

Excludes1 inherited from the categories above R79.0

A category’s note binds every code beneath it.

Written on R79: Other abnormal findings of blood chemistry

  • asymptomatic hyperuricemia (E79.0)
  • hypoglycemia NOS (E16.2)
  • neonatal hypoglycemia (P70.3-P70.4)
  • specific findings indicating disorder of amino-acid metabolism (E70-E72)
  • specific findings indicating disorder of carbohydrate metabolism (E73-E74)
  • specific findings indicating disorder of lipid metabolism (E75.-)

Excludes2 inherited from the categories above R79.0

Not part of this code, but both may be coded when both are present.

Written on R79: Other abnormal findings of blood chemistry

  • hyperglycemia NOS (R73.9)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

R79.0 is named in 3 Medicare coverage policies: 3 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56686Billing and Coding: HbA1c
  • A57189Billing and Coding: Serum Magnesium
  • A59186Billing and Coding: Magnesium

Alphabetic index entries that lead here

  • Abnormal, abnormality, abnormalities›blood level›cobalt
  • Abnormal, abnormality, abnormalities›blood level›copper
  • Abnormal, abnormality, abnormalities›blood level›iron
  • Abnormal, abnormality, abnormalities›blood level›magnesium
  • Abnormal, abnormality, abnormalities›blood level›mineral NEC
  • Abnormal, abnormality, abnormalities›blood level›zinc
  • Abnormal, abnormality, abnormalities›chemistry, blood›minerals

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under R79

ICD-10-CMFY2027· effective October 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.