`0439U`

What 0439U is

This code appears in the Medicare NCCI edit tables. It has no RVUs in the CY2026 Physician Fee Schedule file.

Billed with 0439U? These codes are bundled into it

0439U is a Column 1 code in 28 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
`0119U`		1 - modifier may bypass	Check pair
`0309U`		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
`80503`	Path clin consltj sf 5-20	1 - modifier may bypass	Check pair
`80504`	Path clin consltj mod 21-40	1 - modifier may bypass	Check pair
`80505`	Path clin consltj high 41-60	1 - modifier may bypass	Check pair
`81225`	Cyp2c19 gene com variants	1 - modifier may bypass	Check pair
`81226`	Cyp2d6 gene com variants	1 - modifier may bypass	Check pair
`81227`	Cyp2c9 gene com variants	1 - modifier may bypass	Check pair
`81230`	Cyp3a4 gene common variants	1 - modifier may bypass	Check pair
`81231`	Cyp3a5 gene common variants	1 - modifier may bypass	Check pair
`81240`	F2 gene	1 - modifier may bypass	Check pair
`81241`	F5 gene	1 - modifier may bypass	Check pair
`81291`	Mthfr gene	1 - modifier may bypass	Check pair
`81328`	Slco1b1 gene com variants	1 - modifier may bypass	Check pair
`81355`	Vkorc1 gene	1 - modifier may bypass	Check pair
`81400`	Mopath procedure level 1	1 - modifier may bypass	Check pair
`81401`	Mopath procedure level 2	1 - modifier may bypass	Check pair
`81402`	Mopath procedure level 3	1 - modifier may bypass	Check pair
`81403`	Mopath procedure level 4	1 - modifier may bypass	Check pair
`81404`	Mopath procedure level 5	1 - modifier may bypass	Check pair
`81405`	Mopath procedure level 6	1 - modifier may bypass	Check pair
`81406`	Mopath procedure level 7	1 - modifier may bypass	Check pair
`81407`	Mopath procedure level 8	1 - modifier may bypass	Check pair
`81408`	Mopath procedure level 9	1 - modifier may bypass	Check pair
`96523`	Irrig drug delivery device	0 - no modifier bypass	Check pair
`G0452`	Molecular pathology interpr	1 - modifier may bypass	Check pair

0439U is bundled into these codes

0439U appears as a Column 2 code in 7 active edits. Reported with one of these Column 1 codes on the same date of service, 0439U is the code that denies.

Column 1 code	Short description	Modifier indicator
`0308U`		1	Check pair
`0377U`		1	Check pair
`0401U`		1	Check pair
`81413`	Car ion chnnlpath inc 10 gns	1	Check pair
`81414`	Car ion chnnlpath inc 2 gns	1	Check pair
`81439`	Hrdtry cardmypy gene panel	1	Check pair
`81493`	Cor artery disease mrna	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.