CPT code 10021: Fine needle aspiration, first lesion, no imaging2026 Medicare rate & RVUs in South Dakota

In South Dakota, Medicare pays $97.77 for 10021 in the office and $42.99 when it’s performed in a hospital or facility.

Check a contract rate as a % of Medicare · 10021 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 10021 covers

A clinician uses a fine needle to withdraw cells or fluid from a lesion for diagnostic evaluation, without ultrasound, fluoroscopic, CT, or MR guidance. This may be performed in an office or procedure room when the target can be located clinically, such as a palpable thyroid nodule or superficial lymph node. The code represents sampling of the first lesion; cytologic examination of the specimen is a separate service when performed and appropriately reported.

Choose this code based on the absence of imaging guidance, not the lesion’s size or the number of needle passes. Document the target’s site and identity, the aspiration performed, and that no imaging guidance was used. For each additional distinct lesion sampled without imaging guidance, use 10004 rather than reporting another unit of 10021. When multiple procedures are performed in the same session, CMS applies the standard multiple procedure reduction: the highest-valued procedure is paid in full and the others at 50%.

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 10021

Across 109 of 109 payment localities, the office rate for 10021 runs from $89.75 in Arkansas to $130.13 in San Benito County, CA. South Dakota pays $97.77. The RVUs are the same everywhere; the geographic indexes change the dollars.

Every other payment area

10021 rates by state

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

See 10021 in every payment locality

How the 10021 rate is calculated

Each of 10021’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 10021

The CMS indicators that decide how 10021 is paid alongside other services.

What modifiers do to the payment

When to use modifier 51

Codes related to 10021

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

How 10021 has changed in South Dakota

Price 10021 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