`C8903`

What C8903 is

Magnetic resonance imaging with contrast, breast; unilateral

HCPCS Level II long description, CMS October 2026 file. See the C codes page for the full section.

Medically Unlikely Edit (MUE)

Medicare caps C8903 at 1 unit per date of service for practitioner claims (MAI 3 - date of service edit (clinical): units above the MUE may pay with documentation on appeal), rationale: Code Descriptor / CPT Instruction. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with C8903? These codes are bundled into it

C8903 is a Column 1 code in 23 active NCCI PTP edits. When one of these Column 2 codes is reported on the same date of service, it is denied as bundled - unless the edit's modifier indicator is 1 and documentation supports a distinct service with an NCCI-associated modifier.

Column 2 code	Short description	Modifier indicator
`0708T`	Id ca immntx prep & 1st njx	1 - modifier may bypass	Check pair
`0709T`	Id ca immntx each addl njx	1 - modifier may bypass	Check pair
`36000`	Place needle in vein	1 - modifier may bypass	Check pair
`36410`	Vnpnxr 3yr/> phy/qhp dx/ther	1 - modifier may bypass	Check pair
`36591`	Draw blood off venous device	0 - no modifier bypass	Check pair
`36592`	Collect blood from picc	0 - no modifier bypass	Check pair
`76000`	Fluoroscopy <1 hr phys/qhp	1 - modifier may bypass	Check pair
`76942`	Echo guide for biopsy	1 - modifier may bypass	Check pair
`76998`	Us guide intraop	1 - modifier may bypass	Check pair
`77001`	Fluoroguide for vein device	1 - modifier may bypass	Check pair
`77002`	Needle localization by xray	1 - modifier may bypass	Check pair
`77046`	Mri breast c- unilateral	0 - no modifier bypass	Check pair
`77047`	Mri breast c- bilateral	0 - no modifier bypass	Check pair
`77048`	Mri breast c-+ w/cad uni	0 - no modifier bypass	Check pair
`77049`	Mri breast c-+ w/cad bi	0 - no modifier bypass	Check pair
`96360`	Hydration iv infusion init	1 - modifier may bypass	Check pair
`96365`	Ther/proph/diag iv inf init	1 - modifier may bypass	Check pair
`96372`	Ther/proph/diag inj sc/im	1 - modifier may bypass	Check pair
`96374`	Ther/proph/diag inj iv push	1 - modifier may bypass	Check pair
`96375`	Tx/pro/dx inj new drug addon	1 - modifier may bypass	Check pair
`96376`	Tx/pro/dx inj same drug adon	1 - modifier may bypass	Check pair
`96377`	Applicaton on-body injector	1 - modifier may bypass	Check pair
`96523`	Irrig drug delivery device	0 - no modifier bypass	Check pair

C8903 is bundled into these codes

C8903 appears as a Column 2 code in 2 active edits. Reported with one of these Column 1 codes on the same date of service, C8903 is the code that denies.

Column 1 code	Short description	Modifier indicator
`C8906`		1	Check pair
`C8908`		1	Check pair

Data: CMS CY2026 Physician Fee Schedule RVU file (October release, RVU26D) and Medicare NCCI PTP practitioner edits v32.3 (2026 Q4). Verify against the official files before billing or contracting decisions.