Z45.4 vs Z46.2
Z45.4 (Encounter for adjustment and management of implanted nervous system device) compared with Z46.2 (Encounter for fitting and adjustment of other devices related to nervous system and special senses), 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. Z45.4 carries an Excludes2 note covering Z46.2: “encounter for fitting and adjustment of non-implanted device (Z46.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. Z46.2 carries an Excludes2 note covering Z45.4: “encounter for adjustment and management of implanted nervous system device (Z45.4-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Yes, when both are documented. Z46.2 carries an Excludes2 note covering Z45.4: “encounter for fitting and management of implanted devices (Z45.-)”
Excludes2 marks distinct conditions — both may be reported when both are documented.
Side by side
| Z45.4Encounter for adjustment and management of implanted nervous system device | Z46.2Encounter for fitting and adjustment of other devices related to nervous system and special senses | |
|---|---|---|
| Billing status | Non-billable header | Billable |
| Classification | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) | Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99) |
| Definition | Encounter for adjustment and management of implanted nervous system device is a non-billable ICD-10-CM category code (Z45.4). | Encounter for fitting and adjustment of other devices related to nervous system and special senses is a billable ICD-10-CM diagnosis code (Z46.2). |
| Includes | removal or replacement of implanted device | removal or replacement of other device |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources