CPT code 61320: Abscess drainage2026 Medicare rate & RVUs in Redding

Reports open cranial drainage of an abscess above the tentorium, such as a brain abscess treated through craniotomy or craniectomy.

CMS RVU26DEffective Oct 1, 2026One payment locality436 Medicare services in 2024

In Redding, Medicare pays $1,734.51 for 61320 in a facility. There’s no office rate.

Not available in this settingOffice (non-facility)
$1,734.51Hospital or facility

Check a contract rate as a % of Medicare · 61320 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 61320 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Redding
  2. What 61320 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 61320 covers

This service involves opening the skull to reach and drain an intracranial abscess in the supratentorial compartment. A neurosurgeon typically performs it in an operating room when the collection requires open surgical access; material may be collected for culture as part of treating the infection. The anatomic distinction is whether the abscess lies above the tentorium, not its size or the side of the head.

Select this code when the operative report supports both open cranial access and drainage of a supratentorial abscess. Document the abscess location, approach, and drainage performed. The 90-day global period includes the day-before preoperative visit and related postoperative care during the following 90 days. If multiple procedures are performed in one session, the highest-valued procedure is paid in full and other procedures are subject to the standard 50% reduction. Modifier 50 is inappropriate for this service. An assistant at surgery may be paid; co-surgeon payment requires supporting documentation, and team-surgery payment is 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 Redding compares for 61320

Across 109 of 109 payment localities, the facility rate for 61320 runs from $1,555.54 in Wisconsin to $2,429.43 in Miami. Redding pays $1,734.51. The RVUs are the same everywhere; the geographic indexes change the dollars.

61320 in Redding vs other payment areas
  1. Redding · this page$1,734.51
  2. Bakersfield · California$1,763.45+$28.94
  3. Chico · California$1,734.51
  4. El Centro · California$1,736.37+$1.86
  5. Fresno · California$1,734.51
  6. Hanford-Corcoran · California$1,734.51

Other areas in California first, then benchmark localities. Bars start at $0.

Every other payment area

61320 in every other Medicare payment locality
Payment localityOfficeFacility
MaderaCalifornia—$1,734.51
MercedCalifornia—$1,734.51
ModestoCalifornia—$1,734.51
NapaCalifornia—$1,892.18
Oxnard-Thousand Oaks-VenturaCalifornia—$1,825.90
Rest Of CaliforniaCalifornia—$1,734.51
Riverside-San Bernardino-OntarioCalifornia—$1,853.35
Sacramento-Roseville-FolsomCalifornia—$1,789.80

61320 rates by state

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

Explore a state

Local rates. Clear comparisons.

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

View every state and territory as a table
61320 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 61320 in every payment locality

How the 61320 rate is calculated

Each of 61320’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 · 61320

RVUs × geographic indexes × conversion factor

Work26.73

26.73 RVUs× 1.000 GPCI

Practice expense17.13

17.13 RVUs× 1.000 GPCI

Malpractice11.14

11.14 RVUs× 1.000 GPCI

Adjusted RVUs

55.0000

Conversion factor

$33.4009

Medicare rate

$1,837.05

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

The exact Redding inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

6,764

Code
61320
Physician work
26.73
Practice expense
17.13
Malpractice
11.14

GPCI2026.csv

19

Locality
Redding
Physician work
1.017
Practice expense
1.096
Malpractice
0.536
Facility calculation for 61320 in Redding
ComponentRVULocality factorAdjusted
Physician work26.73× 1.01727.1844
Practice expense17.13× 1.09618.7745
Malpractice11.14× 0.5365.9710
Total RVUs51.9299
Conversion factor× 33.4009

Facility rate, Redding$1734.51

Facility: (26.73 × 1.017 + 17.13 × 1.096 + 11.14 × 0.536) × $33.4009 = $1734.51

Open 61320 in the RVU calculator

Payment rules and modifiers for 61320

61320 has a 90-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 61320

Abscess drainage

RuleCMS valueWhat it means
Global period090Major surgery: the day before, the day of, and 90 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)2Paid.
Co-surgeons (62)1Permitted with supporting documentation.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.11/0.76/0.13Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 61320

Abscess drainage

90-day global period ends

Dec 30, 2026

Covers Sep 30, 2026 through Dec 30, 2026 (92 days, including the day before surgery).

Visit on Oct 31, 2026

Day 30 of the 90-day post-op period: related follow-up care is included in the surgical payment.

  • 24Unrelated E/M visit by the same physician
  • 79Unrelated procedure (starts its own global period)
  • 58Staged, more extensive, or therapy procedure that was planned
  • 78Unplanned return to the operating room for a related complication
SurgeryVisit
Sep 23, 2026Jan 10, 2027

Pre-op dayGlobal period

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

61320 without 51 · national facility

$1,837.05

Abscess drainage

61320-51 · Second procedure: 50%

$918.53

When this isn’t the highest-valued procedure in the session, Medicare pays 50% of its fee schedule amount (the highest is paid at 100%).

When to use modifier 51

How 61320 has changed in Redding

61320 · 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$1,734.51RVU26D
2026-07-01Not available in this setting$1,734.51RVU26C
2026-04-01Not available in this setting$1,734.51RVU26B
2026-01-01Not available in this setting$1,734.69RVU26A
2025-10-01Not available in this setting$1,787.92RVU25D
2025-07-01Not available in this setting$1,787.92RVU25C
2025-04-01Not available in this setting$1,787.92RVU25B
2025-01-01Not available in this setting$1,787.92RVU25A
2024-10-01Not available in this setting$1,824.71RVU24D
2024-07-01Not available in this setting$1,824.71RVU24C
2024-04-01Not available in this setting$1,824.71RVU24B
2024-03-09Not available in this setting$1,824.71RVU24AR
2024-01-01Not available in this setting$1,794.93RVU24A
2023-10-01Not available in this setting$1,848.73RVU23D
2023-07-01Not available in this setting$1,848.73RVU23C
2023-04-01Not available in this setting$1,848.73RVU23B
2023-01-01Not available in this setting$1,848.73RVU23A
2022-10-01Not available in this setting$1,869.44RVU22D
2022-07-01Not available in this setting$1,869.44RVU22C
2022-04-01Not available in this setting$1,869.44RVU22B
2022-01-01Not available in this setting$1,869.44RVU22A
2021-10-01Not available in this setting$1,878.11RVU21D
2021-07-01Not available in this setting$1,878.11RVU21C
2021-04-01Not available in this setting$1,878.11RVU21B
2021-01-01Not available in this setting$1,878.11RVU21A
2020-10-01Not available in this setting$1,895.72RVU20D
2020-07-01Not available in this setting$1,895.72RVU20C
2020-04-01Not available in this setting$1,895.72RVU20B
2020-01-01Not available in this setting$1,895.72RVU20A
2019-10-01Not available in this setting$1,896.94RVU19D
2019-07-01Not available in this setting$1,896.94RVU19C
2019-04-01Not available in this setting$1,896.94RVU19B
2019-01-01Not available in this setting$1,896.94RVU19A
2018-10-01Not available in this setting$1,896.85RVU18D
2018-07-01Not available in this setting$1,896.85RVU18C
2018-04-01Not available in this setting$1,896.85RVU18B
2018-01-01Not available in this setting$1,896.85RVU18AR1
2017-10-01Not available in this setting$1,924.01RVU17D
2017-07-01Not available in this setting$1,924.01RVU17C
2017-04-01Not available in this setting$1,924.01RVU17B
2017-01-01Not available in this setting$1,924.01RVU17A
2016-10-01Not available in this settingRate data unavailableRVU16D
2016-07-01Not available in this settingRate data unavailableRVU16C
2016-04-01Not available in this settingRate data unavailableRVU16B
2016-01-01Not available in this settingRate data unavailableRVU16A
2015-10-01Not available in this settingRate data unavailableRVU15D
2015-07-01Not available in this settingRate data unavailableRVU15C
2015-04-01Not available in this settingRate data unavailableRVU15B
2015-01-01Not available in this settingRate data unavailableRVU15A
2014-10-01Not available in this settingRate data unavailableRVU14D
2014-07-01Not available in this settingRate data unavailableRVU14C
2014-04-01Not available in this settingRate data unavailableRVU14B
2014-01-01Not available in this settingRate data unavailableRVU14A
2013-10-01Not available in this settingRate data unavailableRVU13D
2013-07-01Not available in this settingRate data unavailableRVU13C
2013-04-01Not available in this settingRate data unavailableRVU13B
2013-01-01Not available in this settingRate data unavailableRVU13AR

Price 61320 for an earlier date of service

Where the Redding rate applies

Redding is a Medicare payment area, not a city. Our Census mapping connects it to 32 cities and communities in California. Some span more than one payment area; confirm with the service ZIP.

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61320 billing questions

How does this code differ from 61321?

Use 61320 for an abscess above the tentorium. Code 61321 describes drainage of an abscess in the infratentorial compartment.

When might 61750 be considered instead?

61750 may describe stereotactic biopsy or aspiration of an intracranial lesion using a burr-hole approach. This code is for open cranial access to drain a supratentorial abscess.

What documentation supports reporting this code?

The operative report should identify the abscess as supratentorial and describe the open cranial approach and drainage performed.

Are related postoperative visits separately reported?

Related postoperative care during the 90-day global period is included, as is the preoperative visit on the day before surgery.

How are other procedures in the same session affected?

The highest-valued procedure is paid in full; other procedures in that session are subject to the standard multiple procedure reduction. Modifier 50 is inappropriate for this service.

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 61320PPRRVU2026_Oct_nonQPP.csv, line 6,764 (RVU26D)
Geographic factors for ReddingGPCI2026.csv, line 19 (RVU26D)

Open CMS sourceHow we calculate rates

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