Abnormal serum enzyme level, unspecified

This code indicates an elevated or decreased level of an enzyme in the blood serum, where the specific enzyme affected is not documented. It signifies an abnormal laboratory finding that requires further investigation to determine the underlying cause. This finding often points to potential organ dysfunction or disease processes.

Use this code when laboratory results indicate an abnormal serum enzyme level, but the medical record does not specify which particular enzyme (e.g., AST, ALT, amylase, lipase, troponin) is abnormal. This code is appropriate when the provider documents "abnormal serum enzyme" without further detail, or when the specific enzyme is unknown at the time of coding.

• Avoid using this code if the specific abnormal enzyme is documented; instead, code to the more specific R74.0-R74.8 categories.
• This code is often a temporary diagnosis while further workup is pending to identify the specific enzyme and underlying condition.
• Always review the entire medical record for more specific enzyme abnormalities or a definitive diagnosis before assigning this unspecified code.