Y66 vs Y70
Y66 (Nonadministration of surgical and medical care) compared with Y70 (Anesthesiology devices associated with adverse incidents), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).
Can these codes be reported together?
Yes, when both are documented. Y66 carries an Excludes2 note covering Y70: “breakdown or malfunctioning of medical device (during procedure) (after implantation) (ongoing use) (Y70-Y82)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Y66Nonadministration of surgical and medical care | Y70Anesthesiology devices associated with adverse incidents | |
|---|---|---|
| Billing status | Billable | Non-billable header |
| Classification | V00-Y99 — External Causes of Morbidity (V00-Y99) | V00-Y99 — External Causes of Morbidity (V00-Y99) |
| Definition | Nonadministration of surgical and medical care is a billable ICD-10-CM diagnosis code (Y66). | Anesthesiology devices associated with adverse incidents is a non-billable ICD-10-CM category code (Y70). |
| Includes | Premature cessation of surgical and medical care | breakdown or malfunction of medical devices (during use) (after implantation) (ongoing use) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources