R79.0 – Abnormal level of blood mineral

ICD-10-CM 2027 diagnosis code · Abnormal findings on examination of blood, without diagnosis

Billable code

ICD-10-CM code R79.0

Code: R79.0 (claims format: R790)
Description: Abnormal level of blood mineral
Billable: Yes – valid for HIPAA-covered transactions
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 18. Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
Block: R70-R79 Abnormal findings on examination of blood, without diagnosis
Parent codes: R79

Notes for R79.0

Applicable to:

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 (not coded here):

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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

R79 – Other abnormal findings of blood chemistry

Excludes1 (not coded here):

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 (not included here):

hyperglycemia NOS (R73.9)

Use additional code:

code to identify any retained foreign body, if applicable (Z18.-)

Block R70-R79

Excludes2 (not included here):

abnormal findings on antenatal screening of mother (O28.-)
abnormalities of lipids (E78.-)
abnormalities of platelets and thrombocytes (D69.-)
abnormalities of white blood cells classified elsewhere (D70-D72)
coagulation hemorrhagic disorders (D65-D68)
diagnostic abnormal findings classified elsewhere - see Alphabetical Index
hemorrhagic and hematological disorders of newborn (P50-P61)

Index terms for R79.0

Entries in the ICD-10-CM alphabetic index that lead to this code:

Related codes in R79

Frequently asked questions

What is ICD-10 code R79.0?

R79.0 is the ICD-10-CM code for abnormal level of blood mineral, in the block R70-R79 (Abnormal findings on examination of blood, without diagnosis).

Is R79.0 a billable code?

Yes. R79.0 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does R79.0 belong to?

It belongs to category R79 – Other abnormal findings of blood chemistry.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.