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45386 Colonoscopy w/balloon dilat

What 45386 is

CMS fee schedule short descriptor: Colonoscopy w/balloon dilat.

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 45386 (CY2026)

Work RVUPractice expense RVUMalpractice RVUTotalMedicare rate
Non-facility (office)3.6815.950.4420.07$670.36
Facility (hospital, ASC)3.681.490.445.61$187.38

National rates: total RVUs x the CY2026 conversion factor of 33.4009 (non-QP), before geographic adjustment. Actual Medicare payment is 80% of the rate shown after the deductible; the patient or secondary payer owes the 20% coinsurance.


Status: Active - payable under the Physician Fee Schedule. Global period: Global concept does not apply (endoscopic or minor procedure: global period is the day of the procedure).

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Medically Unlikely Edit (MUE)

Medicare caps 45386 at 1 unit per date of service for practitioner claims (MAI 2 - date of service edit (absolute): units above the MUE never pay), rationale: Code Descriptor / CPT Instruction. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 45386? These codes are bundled into it

45386 is a Column 1 code in 283 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
00731Anes upr gi ndsc px nos0 - no modifier bypassCheck pair
00732Anes upr gi ndsc px ercp0 - no modifier bypassCheck pair
00811Anes lwr intst ndsc nos0 - no modifier bypassCheck pair
00812Anes lwr intst scr colsc0 - no modifier bypassCheck pair
00813Anes upr lwr gi ndsc px0 - no modifier bypassCheck pair
0184TExc rectal tumor endoscopic0 - no modifier bypassCheck pair
0213TNjx paravert w/us cer/thor0 - no modifier bypassCheck pair
0216TNjx paravert w/us lumb/sac0 - no modifier bypassCheck pair
0596TTemp fml iu vlv-pmp 1st insj1 - modifier may bypassCheck pair
0597TTemp fml iu valve-pmp rplcmt1 - modifier may bypassCheck pair
0708TId ca immntx prep & 1st njx1 - modifier may bypassCheck pair
0709TId ca immntx each addl njx1 - modifier may 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
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
12017Rpr fe/e/en/l/m 20.1-30.0 cm1 - modifier may bypassCheck pair
12018Rpr f/e/e/n/l/m >30.0 cm1 - modifier may bypassCheck pair
12020Tx supfc wnd dehsn smpl clsr1 - modifier may bypassCheck pair
12021Tx supfc wnd dehsn w/packing1 - modifier may bypassCheck pair

Showing 30 of 283 column 2 codes. Use the pair checker for any specific combination.

45386 is bundled into these codes

45386 appears as a Column 2 code in 5 active edits. Reported with one of these Column 1 codes on the same date of service, 45386 is the code that denies.

Column 1 codeShort descriptionModifier indicator
0885TColsc flx 1st tndsc dilat0Check pair
0886TSgmdsc flx 1st tndsc dilat0Check pair
45388Colonoscopy w/ablation0Check pair
45389Colonoscopy w/stent plcmt0Check pair
G0104Ca screen;flexi sigmoidscope0Check 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.