Other nonspecific abnormal serum enzyme levels

This code represents an elevation or abnormality in serum enzyme levels that is not specific to a particular organ or disease process, and for which a more definitive diagnosis has not yet been established. It indicates an abnormal lab finding without a clear underlying cause identified at the time of coding.

Use this code when laboratory results indicate elevated or abnormal enzyme levels (e.g., AST, ALT, LDH, alkaline phosphatase) but the physician's documentation does not specify the organ system involved or a definitive diagnosis. This code is appropriate for initial encounters or when further workup is pending to determine the etiology of the enzyme abnormality.

• Do not use this code if a more specific diagnosis explaining the enzyme abnormality is documented (e.g., acute hepatitis, myocardial infarction).
• Always sequence this code after the primary reason for the encounter, unless the abnormal enzyme level is the sole reason for the visit.
• Review the entire medical record for any clues to a more specific diagnosis before assigning this nonspecific code.