F4 Modifier
Left hand, fifth digit
HCPCS modifierF4
- Description
- Left hand, fifth digit
- Short description
- Left hand, fifth digit
- Added
- January 1, 1995
- Last change
- January 1, 1999
What does the F4 modifier mean?
The HCPCS Level II modifier F4 means: “Left hand, fifth digit”. Append it to a HCPCS or CPT code on the claim line when the payer’s policy calls for it; placement and payment effects are defined by each payer.
Other F modifiers
- F1 – Left hand, second digit
- F2 – Left hand, third digit
- F3 – Left hand, fourth digit
- F5 – Right hand, thumb
- F6 – Right hand, second digit
- F7 – Right hand, third digit
- F8 – Right hand, fourth digit
- F9 – Right hand, fifth digit
- FA – Left hand, thumb
- FB – Item provided without cost to provider, supplier or practitioner, or full credit received for replaced device (examples, but not limited to, covered under warranty, replaced due to defect, free samples)
- FC – Partial credit received for replaced device
- FP – Service provided as part of family planning program
- FQ – The service was furnished using audio-only communication technology
- FR – The supervising practitioner was present through two-way, audio/video communication technology
- FS – Split (or shared) evaluation and management visit
- FT – Unrelated evaluation and management (e/m) visit on the same day as another e/m visit or during a global procedure (preoperative, postoperative period, or on the same day as the procedure, as applicable). (report when an e/m visit is furnished within the global period but is unrelated, or when one or more additional e/m visits furnished on the same day are unrelated)
- FX – X-ray taken using film
- FY – X-ray taken using computed radiography technology/cassette-based imaging