Split / Shared Visit & FS Modifier
Split / Shared Visit & FS Modifier - a deterministic tool in Sophie Well's Billing & Reimbursement group.
Open the Split / Shared Visit & FS Modifier → Runs in your browser. No signup, no tracking.
What this is
Split / Shared Visit & FS Modifier is one of 230 deterministic tools in Sophie Well's Billing & Reimbursement group. Split / Shared Visit & FS Modifier - a deterministic tool in Sophie Well's Billing & Reimbursement group.
When to use it
Use this tool when you need a quick, citable reference. Every calculation runs entirely in your browser - no inputs leave your device, no account is required, no AI is involved. The site enforces a strict Content Security Policy and ships no analytics or third-party CDN.
References
CMS Pub. 100-04 Ch. 12 30.6.18 split (or shared) visit policy: in a facility, the E/M is billed by whoever performs the substantive portion (more than half the total time, or a substantive part of the MDM); modifier FS identifies it; NPP billing pays at 85% of the fee schedule. Read the source ↗
Worked example: The physician performed 20 of 35 total minutes (more than half) -> the physician bills with modifier FS at 100% of the fee schedule.
Sophie Well is a reference and educational tool. Not medical, legal, or financial advice. Does not replace clinician judgment, professional billing review, or legal counsel.