CPT code 61797: Cranial radiosurgery, each additional simple lesion2026 Medicare rate & RVUs in Washington, DC area

Reports treatment of each additional simple cranial target during stereotactic radiosurgery, alongside the primary code for a simple lesion.

CMS RVU26DEffective Oct 1, 2026One payment locality8.4K Medicare services in 2024

In Washington, DC area, Medicare pays $218.56 for 61797 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$218.56Hospital or facility

Check a contract rate as a % of Medicare · 61797 nationwide

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

We’ll open 61797 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Washington, DC area
  2. What 61797 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 61797 covers

Code 61797 represents stereotactic radiosurgery directed at an additional simple intracranial lesion during a treatment session. SRS delivers focused radiation to a cranial target without open surgical removal; clinical targets may include brain metastases or other intracranial lesions selected for radiosurgical treatment. Neurosurgeons and radiation oncologists commonly participate in planning and treatment, often in a hospital or specialized radiosurgery setting.

Report 61797 for each additional simple lesion treated, with 61796 as the primary procedure for the simple-lesion treatment. The record should identify the lesions treated, support their classification as simple, and document the radiosurgery plan and delivered treatment. This is an add-on code: it is not billed alone, and Medicare payment falls within the primary procedure’s global period.

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 Washington, DC area compares for 61797

Across 109 of 109 payment localities, the facility rate for 61797 runs from $165.59 in Wisconsin to $274.21 in Miami, FL. Washington, DC area pays $218.56. The RVUs are the same everywhere; the geographic indexes change the dollars.

61797 in Washington, DC area vs other payment areas
  1. Washington, DC area · this page$218.56
  2. Los Angeles, CA · California$195.99−$22.57
  3. Miami, FL · Florida$274.21+$55.65
  4. Chicago, IL · Illinois$262.48+$43.92
  5. Manhattan, NY · New York$241.50+$22.94
  6. Alaska · Alaska$237.95+$19.39
  7. Alabama · Alabama$174.56−$44.00

Other areas in District of Columbia first, then benchmark localities. Bars start at $0.

Every other payment area

61797 in every other Medicare payment locality
Payment localityOfficeFacility
ArkansasArkansas—$171.51
ArizonaArizona—$192.02
Bakersfield, CACalifornia—$187.46
Chico, CACalifornia—$183.77
El Centro, CACalifornia—$184.01
Fresno, CACalifornia—$183.77
Hanford, CACalifornia—$183.77
Madera, CACalifornia—$183.77

61797 rates by state

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

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Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

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61797 office rate range by state
State / territoryOffice rate rangeLocalities
AKNo published base rate1
ALNo published base rate1
ARNo published base rate1
AZNo published base rate1
CANo published base rate29
CONo published base rate1
CTNo published base rate1
DCNo published base rate1
DENo published base rate1
FLNo published base rate3
GANo published base rate2
GUNo published base rate1
HINo published base rate1
IANo published base rate1
IDNo published base rate1
ILNo published base rate4
INNo published base rate1
KSNo published base rate1
KYNo published base rate1
LANo published base rate2
MANo published base rate2
MDNo published base rate3
MENo published base rate2
MINo published base rate2
MNNo published base rate1
MONo published base rate3
MSNo published base rate1
MTNo published base rate1
NCNo published base rate1
NDNo published base rate1
NENo published base rate1
NHNo published base rate1
NJNo published base rate2
NMNo published base rate1
NVNo published base rate1
NYNo published base rate5
OHNo published base rate1
OKNo published base rate1
ORNo published base rate2
PANo published base rate2
PRNo published base rate1
RINo published base rate1
SCNo published base rate1
SDNo published base rate1
TNNo published base rate1
TXNo published base rate8
UTNo published base rate1
VANo published base rate2
VINo published base rate1
VTNo published base rate1
WANo published base rate2
WINo published base rate1
WVNo published base rate1
WYNo published base rate1

See 61797 in every payment locality

How the 61797 rate is calculated

Each of 61797’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.

How the rate is built · 61797

RVUs × geographic indexes × conversion factor

Office or facility?

Work3.39

3.39 RVUs× 1.000 GPCI

Practice expense1.18

1.18 RVUs× 1.000 GPCI

Malpractice1.42

1.42 RVUs× 1.000 GPCI

Adjusted RVUs

5.9900

Conversion factor

$33.4009

Medicare rate

$200.07

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Washington, DC area inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,890

Code
61797
Physician work
3.39
Practice expense
1.18
Malpractice
1.42

GPCI2026.csv

39

Locality
Washington, DC area
Physician work
1.054
Practice expense
1.178
Malpractice
1.113
Facility calculation for 61797 in Washington, DC area
ComponentRVULocality factorAdjusted
Physician work3.39× 1.0543.5731
Practice expense1.18× 1.1781.3900
Malpractice1.42× 1.1131.5805
Total RVUs6.5436
Conversion factor× 33.4009

Facility rate, Washington, DC area$218.56

Facility: (3.39 × 1.054 + 1.18 × 1.178 + 1.42 × 1.113) × $33.4009 = $218.56

Open 61797 in the RVU calculator

Payment rules and modifiers for 61797

The CMS indicators that decide how 61797 is paid alongside other services.

CMS payment indicators · 61797

Cranial radiosurgery, each additional simple lesion

RuleCMS valueWhat it means
Global periodZZZAdd-on code: falls within the primary procedure’s global period.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 80 · payment effect

With and without the modifier

61797 without 80 · national facility

$200.07

Cranial radiosurgery, each additional simple lesion

61797-80 · Assistant: 16%

$32.01

A physician assistant at surgery is paid 16% of the surgeon’s fee schedule amount.

When to use modifier 80

How 61797 has changed in Washington, DC area

61797 · Office / nonfacility

Rate unavailable

Effective 2026-10-01

A rate is unavailable in one of these releases, so a change cannot be calculated.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01Not available in this setting$218.56RVU26D
2026-07-01Not available in this setting$218.56RVU26C
2026-04-01Not available in this setting$218.56RVU26B
2026-01-01Not available in this setting$218.56RVU26A
2025-10-01Not available in this setting$238.56RVU25D
2025-07-01Not available in this setting$238.56RVU25C
2025-04-01Not available in this setting$238.56RVU25B
2025-01-01Not available in this setting$238.56RVU25A
2024-10-01Not available in this setting$245.08RVU24D
2024-07-01Not available in this setting$245.08RVU24C
2024-04-01Not available in this setting$245.08RVU24B
2024-03-09Not available in this setting$245.08RVU24AR
2024-01-01Not available in this setting$241.08RVU24A
2023-10-01Not available in this setting$251.22RVU23D
2023-07-01Not available in this setting$251.22RVU23C
2023-04-01Not available in this setting$251.22RVU23B
2023-01-01Not available in this setting$251.22RVU23A
2022-10-01Not available in this setting$257.49RVU22D
2022-07-01Not available in this setting$257.49RVU22C
2022-04-01Not available in this setting$257.49RVU22B
2022-01-01Not available in this setting$257.49RVU22A
2021-10-01Not available in this setting$258.69RVU21D
2021-07-01Not available in this setting$258.69RVU21C
2021-04-01Not available in this setting$258.69RVU21B
2021-01-01Not available in this setting$258.69RVU21A
2020-10-01Not available in this setting$260.78RVU20D
2020-07-01Not available in this setting$260.78RVU20C
2020-04-01Not available in this setting$260.78RVU20B
2020-01-01Not available in this setting$260.78RVU20A
2019-10-01Not available in this setting$264.19RVU19D
2019-07-01Not available in this setting$264.19RVU19C
2019-04-01Not available in this setting$264.19RVU19B
2019-01-01Not available in this setting$264.19RVU19A
2018-10-01Not available in this setting$265.69RVU18D
2018-07-01Not available in this setting$265.69RVU18C
2018-04-01Not available in this setting$265.69RVU18B
2018-01-01Not available in this setting$265.69RVU18AR1
2017-10-01Not available in this setting$265.74RVU17D
2017-07-01Not available in this setting$265.74RVU17C
2017-04-01Not available in this setting$265.74RVU17B
2017-01-01Not available in this setting$265.74RVU17A
2016-10-01Not available in this setting$266.84RVU16D
2016-07-01Not available in this setting$266.84RVU16C
2016-04-01Not available in this setting$266.84RVU16B
2016-01-01Not available in this setting$266.84RVU16A
2015-10-01Not available in this setting$270.54RVU15D
2015-07-01Not available in this setting$270.54RVU15C
2015-04-01Not available in this setting$269.19RVU15B
2015-01-01Not available in this setting$269.19RVU15A
2014-10-01Not available in this setting$249.86RVU14D
2014-07-01Not available in this setting$249.86RVU14C
2014-04-01Not available in this setting$249.86RVU14B
2014-01-01Not available in this setting$249.86RVU14A
2013-10-01Not available in this setting$240.94RVU13D
2013-07-01Not available in this setting$240.94RVU13C
2013-04-01Not available in this setting$240.94RVU13B
2013-01-01Not available in this setting$240.94RVU13AR

Price 61797 for an earlier date of service

Where the Washington, DC area rate applies

Washington, DC area is a Medicare payment area, not a city. Our Census mapping connects it to 1 cities and communities in District of Columbia. Some span more than one payment area; confirm with the service ZIP.

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Browse all communities in District of Columbia

61797 billing questions

When is 61797 reported instead of 61796?

Use 61796 for the primary simple-lesion radiosurgery procedure. Report 61797 for each additional simple lesion treated in that session.

Can 61797 be billed by itself?

No. It is an add-on code and must be reported with the applicable primary procedure, 61796 for simple-lesion treatment.

How many units should be reported?

Report one unit for each additional simple lesion treated. The record should identify each target and show that radiosurgery was delivered to it.

How does 61797 differ from 61799?

Both represent additional cranial lesions, but 61797 is for lesions classified as simple and 61799 for those classified as complex.

What documentation supports the additional-lesion code?

Document the number and identity of lesions, their simple classification, the treatment plan, and delivery of radiosurgery to each additional target.

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

Show the CMS file lines behind this rate
RVUs for 61797PPRRVU2026_Oct_nonQPP.csv, line 6,890 (RVU26D)
Geographic factors for Washington, DC areaGPCI2026.csv, line 39 (RVU26D)

Open CMS sourceHow we calculate rates

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