ICD-10-CM 2027
ICD-10 code for monitoring
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Monitoring (encounter for)”. Page updated September 29, 2026.
About coding monitoring
The official ICD-10-CM index doesn't give a single default code for monitoring; the code depends on the details below.
More specific monitoring codes (official index)
- therapeutic drug level Z51.81 — Encounter for therapeutic drug level monitoring
Common questions about monitoring ICD-10 codes
What is the ICD-10 code for therapeutic drug level monitoring?
- Z51.81 — Encounter for therapeutic drug level monitoring.