ICD-10-CM · Chapter 18 · R00-R99
R74 Abnormal serum enzyme levels
Subcodes
Subcodes are listed below for reference. Detail pages are not available for chapters 11–22.
| Code | Description | Billable |
|---|---|---|
| R74..0 | Nonspecific elevation of levels of transaminase and lactic acid dehydrogenase [LDH] | No |
| R74..01 | Elevation of levels of liver transaminase levels | Yes |
| R74..02 | Elevation of levels of lactic acid dehydrogenase [LDH] | Yes |
| R74..8 | Abnormal levels of other serum enzymes | Yes |
| R74..9 | Abnormal serum enzyme level, unspecified | Yes |
Last reviewed: September 2026