2021 ICD-10-CM Codes for Other abnormal findings of blood chemistry (R79)

Instructional Notations

Use Additional Code Use Additional Code
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.

  • code to identify any retained foreign body, if applicable Z18

Type 1 Excludes Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • asymptomatic hyperuricemia E79.0
  • hyperglycemia NOS R73.9
  • 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