Other abnormal findings of blood chemistry (R79)

Browse all the diagnosis codes used for other abnormal findings of blood chemistry (R79). For easy navigation, the diagnosis codes are sorted in alphabetical order and grouped by sections. Each section is clearly marked with its description, and the corresponding three-digit code range. This format makes it simple to browse diagnosis codes in this chapter or section and find what you're looking for. We've also added green checkmark icons to label billable codes, and red warning icons for non-billable ones. This makes it easy to identify which codes can be billed.

Instructional Notations

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

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

Clinical Terms

The following clinical terms provide additional context, helping users better understand the clinical background and common associations for each diagnosis listed in this section. Including related terms alongside ICD-10-CM codes supports coders, billers, and healthcare professionals in improving accuracy, enhancing documentation, and facilitating research or patient education.