R74.9
✓ Billable
Abnormal serum enzyme level, unspecified
ICD-10-CM · FY2026 · Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Code
R74.9
System
ICD-10-CM
Billable
Yes — valid for submission
Effective
FY2026
Chapter
Symptoms, Signs and Abnormal Clinical and Laboratory Findings
Source
CMS / CDC NCHS
⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.
Frequently asked questions
What is ICD-10 code R74.9?
ICD-10-CM code R74.9 represents Abnormal serum enzyme level, unspecified. It is a billable diagnosis code in the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter, effective October 1, 2025 – September 30, 2026.
Is R74.9 billable?
Yes. R74.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.
What chapter is R74.9 in?
R74.9 belongs to the Symptoms, Signs and Abnormal Clinical and Laboratory Findings chapter (R00–R99) of ICD-10-CM.
Related codes in the R74 category
R74
Abnormal serum enzyme levels
Non-billable
R74.0
Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH]
Non-billable
R74.8
Abnormal levels of other serum enzymes
Billable
R74.01
Elevation of levels of liver transaminase levels
Billable
R74.02
Elevation of levels of lactic acid dehydrogenase [LDH]
Billable
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