Is R74 a billable code?
No. R74 is a header code that groups 4 more specific codes. Use one of the billable codes listed on this page instead.
ICD-10-CM FY2027 diagnosis code
R74: Abnormal serum enzyme levels
Header code: not billableValid for dates of service October 1, 2026 to September 30, 2027
R74 groups related diagnoses under abnormal serum enzyme levels. It cannot be used on a claim by itself. Choose the billable code below that matches the patient's record.
R74 questions
What does R74 mean?
R74 is the ICD-10-CM code for Abnormal serum enzyme levels. It is in chapter 18, Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99).
Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.