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CPT 31231 — Nasal endoscopy dx

CPT code 31231 (Nasal endoscopy dx) carries 1.07 work RVUs under the CMS 2026 Medicare Physician Fee Schedule. Total RVUs are 5.79 in a non-facility setting and 1.64 in a facility setting, which at the 2026 conversion factor of $33.40 works out to $193.39 and $54.78 respectively.

1.07
Work RVU
5.79
Total RVU (non-facility)
$193.39
Medicare, non-facility
$54.78
Medicare, facility
Calculate your total wRVUs →

RVU breakdown for CPT 31231

ComponentRVUsWhat it covers
Work RVU1.07Physician time, skill, effort, and stress.
Practice expense RVU (non-facility)4.56Office overhead, staff, supplies.
Practice expense RVU (facility)0.41Overhead when performed in a hospital.
Malpractice RVU0.16Professional liability cost.
Total RVU (non-facility)5.79Work + non-facility PE + malpractice.
Total RVU (facility)1.64Work + facility PE + malpractice.

How Medicare payment is calculated

Medicare multiplies total RVUs by the annual conversion factor. For CPT 31231 in 2026:

SettingTotal RVUConversion factorNational payment
Non-facility5.79$33.40$193.39
Facility1.64$33.40$54.78

These are national amounts. Actual payment is adjusted by the Geographic Practice Cost Index for your locality — check yours with the GPCI lookup.

Billing rules for CPT 31231

Global period
0-day global — no pre- or post-operative period included.
Multiple procedure reduction
Subject to the standard multiple-procedure reduction (100%/50%/50%…).
Bilateral surgery
RVUs already reflect the bilateral procedure; no further adjustment.
Assistant surgeon
Not permitted.
Co-surgeon
Not permitted unless documentation supports medical necessity.
Team surgery
Not permitted unless documentation supports medical necessity.

Related codes

Codes in the same CMS family, with their work RVU values.

31230 · 30.05 wRVU31237 · 2.54 wRVU31255 · 5.61 wRVU31256 · 3.03 wRVU31276 · 6.58 wRVU31288 · 4.0 wRVU31295 · 2.63 wRVU31298 · 4.39 wRVU

Questions about CPT 31231

How many work RVUs is CPT 31231?

CPT 31231 is assigned 1.07 work RVUs in the CMS 2026 Medicare Physician Fee Schedule.

What does Medicare pay for CPT 31231?

At the 2026 national conversion factor of $33.40, CPT 31231 pays approximately $193.39 in a non-facility setting and $54.78 in a facility setting before geographic adjustment.

What is the global period for CPT 31231?

0-day global — no pre- or post-operative period included.

RVU values reflect the CMS 2026 Medicare Physician Fee Schedule (conversion factor $33.40). Payment figures are national and unadjusted for geography. Verify against the official fee schedule before using for billing.