Z46.4 Encounter for fitting and adjustment of orthodontic device
The ICD-10-CM code for Encounter for fitting and adjustment of orthodontic device is Z46.4 (FY2026). It is a billable, claim-ready diagnosis code.
Classification
- Section
- Z40-Z53: Encounters for other specific health care (Z40-Z53)
- Category Z46
- 15 codes (12 billable)
- FY2026 Status
- Stable since FY2024
Also Known As
ICD-10-CM Alphabetic Index entries that lead to Z46.4:
- Orthodontics › fitting
- Fitting (and adjustment) (of) › orthodontic device
- Orthodontics › adjustment
- Removal (from) (of) › orthodontic device
- Admission (for) › fitting (of) › orthodontic device
- Encounter (with health service) (for) › removal (of) › orthodontic device
- Admission (for) › adjustment (of) › orthodontic device
- Fitting (and adjustment) (of) › device NOS › orthodontic
U.S. Hospital Utilization
- An estimated 65 U.S. inpatient stays in 2020 included Z46.4 among the documented diagnoses.
Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.
Official Coding Guidelines
Used with any code in range A00.0-T88.9, Z00-Z991) Used with any code in the range of A00.0-T88.9, Z00-Z99 An external cause code may be used with any code in the range of A00.0-T88.9, Z00-Z99, classification that represents a health condition due to an external cause. Though they are most applicable to injuries, they are also valid for use with such things as infections or diseases due to an external source, and other health conditions, such as a heart attack that occurs during strenuous physical activity.
Additional codes with observation code (fragment)observation code, but only if they are unrelated to the suspected condition being observed.
Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026