CPT code 15821: Lower eyelid surgery, prominent fat-pad prolapse2026 Medicare rate & RVUs in South Dakota

In South Dakota, Medicare pays $619.87 for 15821 in the office and $469.23 when it’s performed in a hospital or facility.

Check a contract rate as a % of Medicare · 15821 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 15821 covers

This procedure reshapes the lower eyelid when prominent orbital fat pads create under-eye bulging. The surgeon may remove or reposition protruding fat and address redundant skin as part of the lid contouring. Oculoplastic, plastic, or facial plastic surgeons commonly perform it in an ambulatory surgery center or hospital, and sometimes in an office-based operating setting. The operative note should identify the lower lid treated, describe the extent of fat prolapse, and document the work performed and the clinical indication.

Select this code when the lower-lid operation involves substantial fat-pad prolapse; use 15820 for lower-lid blepharoplasty without that extent of fat involvement. For both eyelids, CMS pays modifier 50 at 150% of the unilateral payment. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and the others at 50%. The 90-day global includes the day-before preoperative visit and 90 days of related postoperative care. Assistant-at-surgery payment requires documented medical necessity; co-surgeons and team surgery 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 South Dakota compares for 15821

Across 109 of 109 payment localities, the office rate for 15821 runs from $568.79 in Arkansas to $821.00 in San Benito County, CA. South Dakota pays $619.87. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

15821 rates by state

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

See 15821 in every payment locality

How the 15821 rate is calculated

Each of 15821’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 15821

15821 has a 90-day global period: related visits in that window are included in the surgery payment.

What modifiers do to the payment

When to use modifier 50

Codes related to 15821

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

How 15821 has changed in South Dakota

Price 15821 for an earlier date of service

Where the South Dakota rate applies

South Dakota is a Medicare payment area, not a city. Our Census mapping connects it to 485 cities and communities in South Dakota. Some span more than one payment area; confirm with the service ZIP.

• Aberdeen
• Agar
• Agency Village
• Akaska
• Albee
• Alcester
• Alexandria
• Allen

Browse all communities in South Dakota

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