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31529 Laryngoscopy and dilation

What 31529 is

CMS fee schedule short descriptor: Laryngoscopy and dilation.

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 31529 (CY2026)

Work RVUPractice expense RVUMalpractice RVUTotalMedicare rate
Non-facility (office)2.611.140.384.13$137.95
Facility (hospital, ASC)2.611.140.384.13$137.95

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 31529 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: Clinical: Data. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.

Billed with 31529? These codes are bundled into it

31529 is a Column 1 code in 231 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
00320Anes all px neck nos 1yr/>0 - no modifier bypassCheck pair
00326Anes all px larynx&trach<1yr0 - 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
12031Intmd rpr s/a/t/ext 2.5 cm/<1 - modifier may bypassCheck pair
12032Intmd rpr s/a/t/ext 2.6-7.51 - modifier may bypassCheck pair
12034Intmd rpr s/tr/ext 7.6-12.51 - modifier may bypassCheck pair
12035Intmd rpr s/a/t/ext 12.6-201 - modifier may bypassCheck pair

Showing 30 of 231 column 2 codes. Use the pair checker for any specific combination.

31529 is bundled into these codes

31529 appears as a Column 2 code in 25 active edits. Reported with one of these Column 1 codes on the same date of service, 31529 is the code that denies.

Column 1 codeShort descriptionModifier indicator
31300Removal of larynx lesion1Check pair
31360Removal of larynx1Check pair
31365Removal of larynx1Check pair
31367Partial removal of larynx1Check pair
31368Partial removal of larynx1Check pair
31370Partial removal of larynx1Check pair
31375Partial removal of larynx1Check pair
31380Partial removal of larynx1Check pair
31382Partial removal of larynx1Check pair
31390Removal of larynx & pharynx1Check pair
31395Reconstruct larynx & pharynx1Check pair
31400Revision of larynx1Check pair
31420Epiglottidectomy1Check pair
31500Insert emergency airway1Check pair
31502Change of windpipe airway1Check 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.