R74 - Abnormal serum enzyme levels

Version 2023
No Valid Principal Dx
Short Description:Abnormal serum enzyme levels
Long Description:Abnormal serum enzyme levels
Status: Not Valid for Submission
Version:ICD-10-CM 2023
Code Classification:
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Abnormal findings on examination of blood, without diagnosis (R70-R79)
      • Abnormal serum enzyme levels (R74)

R74 is a non-specific and non-billable ICD-10 code code, consider using a code with a higher level of specificity for a diagnosis of abnormal serum enzyme levels. The code is not specific and is NOT valid for the year 2023 for the submission of HIPAA-covered transactions. Category or Header define the heading of a category of codes that may be further subdivided by the use of 4th, 5th, 6th or 7th characters.

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.

Specific Coding for Abnormal serum enzyme levels

Non-specific codes like R74 require more digits to indicate the appropriate level of specificity. Consider using any of the following ICD-10 codes with a higher level of specificity when coding for abnormal serum enzyme levels:

  • NON-BILLABLE CODE - R74.0 for Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH]
  • BILLABLE CODE - Use R74.01 for Elevation of levels of liver transaminase levels
  • BILLABLE CODE - Use R74.02 for Elevation of levels of lactic acid dehydrogenase [LDH]
  • BILLABLE CODE - Use R74.8 for Abnormal levels of other serum enzymes
  • BILLABLE CODE - Use R74.9 for Abnormal serum enzyme level, unspecified

Code History