CPT code 31638: Airway stent revision, tracheal or bronchial stent2026 Medicare rate & RVUs in Iowa

In Iowa, Medicare pays $205.69 for 31638 in a facility. There’s no office rate.

Check a contract rate as a % of Medicare · 31638 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

What 31638 covers

A pulmonologist or thoracic surgeon uses a bronchoscope to revise a stent already placed in the trachea or a bronchus. The service may be needed when a stent has migrated or no longer maintains the intended airway position or patency. It is commonly performed in a hospital procedural or operating-room setting. The key distinction is revision of an existing airway stent, rather than initial stent placement or airway dilation alone.

Report the service when the procedure note identifies the existing stent, its airway location, the reason for revision, and the work performed. The code has a 0-day global period, so same-day preoperative and postoperative care is included. When related endoscopies are performed together, CMS endoscopy-family pricing applies rather than treating each as an independent full procedure. Medicare does not pay an assistant-at-surgery claim for this service; co-surgeon and team-surgery billing are not permitted.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How Iowa compares for 31638

Across 109 of 109 payment localities, the facility rate for 31638 runs from $205.12 in Arkansas to $294.27 in Alaska. Iowa pays $205.69. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

31638 rates by state

Office rate range in each state. Select a state to see its payment localities.

See 31638 in every payment locality

How the 31638 rate is calculated

Each of 31638’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

Payment rules and modifiers for 31638

The CMS indicators that decide how 31638 is paid alongside other services.

What modifiers do to the payment

When to use modifier 51

Codes related to 31638

Related codes aren’t interchangeable: bill the code that matches the service performed.

How 31638 has changed in Iowa

Price 31638 for an earlier date of service

Where the Iowa rate applies

Iowa is a Medicare payment area, not a city. Our Census mapping connects it to 1026 cities and communities in Iowa. Some span more than one payment area; confirm with the service ZIP.

• Ackley
• Ackworth
• Adair
• Adel
• Afton
• Agency
• Ainsworth
• Akron

Browse all communities in Iowa

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Open CMS sourceHow we calculate rates