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0646T Ttvi/rplcmt w/prstc vlv perq

What 0646T is

CMS fee schedule short descriptor: Ttvi/rplcmt w/prstc vlv perq.

Full CPT long descriptions are licensed by the American Medical Association and are not published on this site; the short descriptor above is the one CMS prints in its own fee schedule file. See About CPT.

Medicare payment for 0646T (CY2026)

This code has no Physician Fee Schedule rate: Carrier-priced - the Medicare contractor sets the price. It may be paid under a different fee schedule (clinical laboratory, DMEPOS, anesthesia) or not paid at all - check the relevant CMS schedule.

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Medically Unlikely Edit (MUE)

Medicare caps 0646T at 1 unit per date of service for practitioner claims (MAI 2 - date of service edit (absolute): units above the MUE never pay), rationale: Anatomic Consideration. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 0646T? These codes are bundled into it

0646T is a Column 1 code in 293 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 codeShort descriptionModifier indicator
0213TNjx paravert w/us cer/thor0 - no modifier bypassCheck pair
0216TNjx paravert w/us lumb/sac0 - no modifier bypassCheck pair
0545TTcat tv annulus rcnstj0 - no modifier bypassCheck pair
0569TTtvr perq appr 1st prosth0 - no modifier bypassCheck pair
0903TEcg alg 12 lead reduced i&r1 - modifier may bypassCheck pair
0904TEcg alg 12 ld rdcd trcg only1 - modifier may bypassCheck pair
0905TEcg alg 12 ld rdcd i&r only1 - modifier may bypassCheck pair
0932TN-invs det hrt fail aug echo1 - modifier may bypassCheck pair
11000Dbrdmt ecz/infected skin<10%1 - modifier may bypassCheck pair
11001Dbrdmt ecz/infct skn ea addl1 - modifier may bypassCheck pair
11004Dbrdmt skin xtrnl gent&per1 - modifier may bypassCheck pair
11005Dbrdmt skin abdominal wall1 - modifier may bypassCheck pair
11006Dbrdmt skin xtrnl gent per1 - modifier may bypassCheck pair
11042Dbrdmt subq tis 1st 20sqcm/<1 - modifier may bypassCheck pair
11043Dbrdmt musc&/fsca 1st 20/<1 - modifier may bypassCheck pair
11044Dbrdmt bone 1st 20 sq cm/<1 - modifier may bypassCheck pair
11045Dbrdmt subq tiss each addl1 - modifier may bypassCheck pair
11046Dbrdmt musc&/fsca ea addl1 - modifier may bypassCheck pair
11047Dbrdmt bone each addl1 - modifier may bypassCheck pair
12001Rpr s/n/ax/gen/trnk 2.5cm/<1 - modifier may bypassCheck pair
12002Rpr s/n/ax/gen/trnk2.6-7.5cm1 - modifier may bypassCheck pair
12004Rpr s/n/ax/gen/trk7.6-12.5cm1 - modifier may bypassCheck pair
12005Rpr s/n/a/gen/trk12.6-20.0cm1 - modifier may bypassCheck pair
12006Rpr s/n/a/gen/trk20.1-30.0cm1 - modifier may bypassCheck pair
12007Rpr s/n/ax/gen/trnk >30.0 cm1 - modifier may bypassCheck pair
12011Rpr f/e/e/n/l/m 2.5 cm/<1 - modifier may bypassCheck pair
12013Rpr f/e/e/n/l/m 2.6-5.0 cm1 - modifier may bypassCheck pair
12014Rpr f/e/e/n/l/m 5.1-7.5 cm1 - modifier may bypassCheck pair
12015Rpr f/e/e/n/l/m 7.6-12.5 cm1 - modifier may bypassCheck pair
12016Rpr fe/e/en/l/m 12.6-20.0 cm1 - modifier may bypassCheck pair

Showing 30 of 293 column 2 codes. Use the pair checker for any specific combination.

0646T is bundled into these codes

0646T appears as a Column 2 code in 9 active edits. Reported with one of these Column 1 codes on the same date of service, 0646T is the code that denies.

Column 1 codeShort descriptionModifier indicator
0596TTemp fml iu vlv-pmp 1st insj1Check pair
0597TTemp fml iu valve-pmp rplcmt1Check pair
0632TPerq tcat us abltj nrv p-art1Check pair
33460Revision of tricuspid valve1Check pair
33463Valvuloplasty tricuspid1Check pair
33465Replace tricuspid valve1Check pair
33468Revision of tricuspid valve0Check pair
33600Closure of valve1Check pair
93563Njx cgen car cth slctv c ang1Check 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.