R74.9 Abnormal serum enzyme level, unspecified

Billable ICD-10-CM code, FY2026.

MS-DRG index

Defines the logic of DRG(s) 947-948 in MDC 23.

Approximate ICD-9-CM (GEMs)

• 790.5 Other nonspecific abnormal serum enzyme levels (approximate)

Diagnosis Index entries for R74.9

• Abnormal, abnormality, abnormalities › serum level (of) › enzymes

Nearby codes

• R74 Abnormal serum enzyme levels
• R74.0 Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH]
• R74.01 Elevation of levels of liver transaminase levels
• R74.02 Elevation of levels of lactic acid dehydrogenase [LDH]
• R74.8 Abnormal levels of other serum enzymes
• R74.9 Abnormal serum enzyme level, unspecified (this code)