CPT code 36556: Central line insertion, age 5 years or older2026 Medicare rate & RVUs in Houston, TX

Report 36556 for insertion of a non-tunneled central venous catheter through a central vein in a patient age 5 years or older.

CMS RVU26DEffective Oct 1, 2026One payment locality291.4K Medicare services in 2024

In Houston, TX, Medicare pays $239.95 for 36556 in the office and $80.75 when it’s performed in a hospital or facility.

$239.95Office (non-facility)
$80.75Hospital or facility
+0.9%vs the national office rate ($237.81)

Check a contract rate as a % of Medicare · 36556 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 36556 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Houston, TX
  2. What 36556 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 36556 covers

This service covers placement of a non-tunneled catheter into a central vein for access such as infusion of medications or fluids, hemodynamic monitoring, or treatment when peripheral access is inadequate. It is commonly performed by a physician or other qualified practitioner in a hospital, intensive care unit, emergency department, or procedural setting. The patient must be at least 5 years old, and the catheter must be centrally inserted and non-tunneled; a peripherally inserted central catheter or a tunneled catheter is a different service.

Report the code for the insertion, not for a later exchange or removal. The record should identify the indication, patient age, access site, and catheter placement. Ultrasound guidance may be separately reported when its requirements are met and documented. Medicare assigns a 0-day global period, so same-day preoperative and postoperative care is included. Modifier 50 is inappropriate. Medicare does not pay an assistant at surgery for this service; 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 Houston, TX compares for 36556

Across 109 of 109 payment localities, the office rate for 36556 runs from $209.69 in Arkansas to $317.01 in San Benito County, CA. Houston, TX pays $239.95. The RVUs are the same everywhere; the geographic indexes change the dollars.

36556 in Houston, TX vs other payment areas
  1. Houston, TX · this page$239.95
  2. Austin, TX · Texas$247.09+$7.14
  3. Beaumont, TX · Texas$221.70−$18.25
  4. Brazoria, TX · Texas$235.02−$4.93
  5. Dallas, TX · Texas$236.55−$3.40
  6. Fort Worth, TX · Texas$234.92−$5.03
  7. Galveston, TX · Texas$235.74−$4.21

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

Every other payment area

36556 in every other Medicare payment locality
Payment localityOfficeFacility
Rest of TexasTexas$228.25$76.10
Los Angeles, CACalifornia$269.24$79.57
Washington, DC areaDistrict of Columbia$272.56$83.70
Miami, FLFlorida$256.65$89.76
Chicago, ILIllinois$249.03$87.90
Manhattan, NYNew York$274.00$87.70
AlaskaAlaska$274.17$103.42
AlabamaAlabama$212.85$72.57

36556 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.

$209.69

$284.42

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
36556 office rate range by state
State / territoryOffice rate rangeLocalities
AK$274.171
AL$212.851
AR$209.691
AZ$231.341
CA$251.83–$317.0129
CO$247.891
CT$253.891
DC$272.561
DE$235.251
FL$234.07–$256.653
GA$220.60–$242.302
GU$258.281
HI$258.281
IA$218.481
ID$219.921
IL$227.09–$249.034
IN$221.241
KS$217.391
KY$217.961
LA$217.59–$228.652
MA$246.34–$272.882
MD$239.83–$272.563
ME$221.07–$233.422
MI$223.75–$237.032
MN$237.421
MO$213.74–$229.523
MS$211.761
MT$237.801
NC$223.451
ND$233.251
NE$219.711
NH$243.951
NJ$256.76–$269.622
NM$225.001
NV$236.701
NY$226.88–$280.755
OH$222.821
OK$217.591
OR$234.84–$255.972
PA$223.20–$247.422
PR$239.601
RI$243.781
SC$223.511
SD$232.711
TN$218.511
TX$221.70–$247.098
UT$226.651
VA$232.61–$272.562
VI$239.601
VT$232.291
WA$245.89–$278.542
WI$225.231
WV$218.461
WY$235.821

See 36556 in every payment locality

How the 36556 rate is calculated

Each of 36556’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 · 36556

RVUs × geographic indexes × conversion factor

Office or facility?

Work1.71

1.71 RVUs× 1.000 GPCI

Practice expense5.18

5.18 RVUs× 1.000 GPCI

Malpractice0.23

0.23 RVUs× 1.000 GPCI

Adjusted RVUs

7.1200

Conversion factor

$33.4009

Medicare rate

$237.81

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

The exact Houston, TX inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,505

Code
36556
Physician work
1.71
Practice expense
5.18
Malpractice
0.23

GPCI2026.csv

102

Locality
Houston, TX
Physician work
1.008
Practice expense
0.993
Malpractice
1.376
Office calculation for 36556 in Houston, TX
ComponentRVULocality factorAdjusted
Physician work1.71× 1.0081.7237
Practice expense5.18× 0.9935.1437
Malpractice0.23× 1.3760.3165
Total RVUs7.1839
Conversion factor× 33.4009

Office rate, Houston, TX$239.95

Office: (1.71 × 1.008 + 5.18 × 0.993 + 0.23 × 1.376) × $33.4009 = $239.95

Facility: (1.71 × 1.008 + 0.38 × 0.993 + 0.23 × 1.376) × $33.4009 = $80.75

Open 36556 in the RVU calculator

Payment rules and modifiers for 36556

The CMS indicators that decide how 36556 is paid alongside other services.

CMS payment indicators · 36556

Central line insertion, age 5 years or older

RuleCMS valueWhat it means
Global period000Same-day global: pre- and post-op care on the day of the procedure is included.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

How 36556 has changed in Houston, TX

36556 · Office / nonfacility

$239.95

Effective 2026-10-01

The base rate is $34.64 higher than on 2025-10-01, moving from $205.31 to $239.95 (16.9%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

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
  1. January 1, 2026

    RVU26A

    $205.31changed to$239.95

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 1.75 changed to 1.71
    • Practice expense RVU 4.25 changed to 5.18
    • Malpractice RVU 0.22 changed to 0.23
    • Work GPCI 1.014 changed to 1.008
    • Practice expense GPCI 1.003 changed to 0.993
    • Malpractice GPCI 1.409 changed to 1.376

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $215.76changed to$205.31

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 4.37 changed to 4.25
    • Malpractice RVU 0.23 changed to 0.22

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $212.24changed to$215.76

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $222.14changed to$212.24

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 4.44 changed to 4.37
    • Malpractice RVU 0.22 changed to 0.23
    • Work GPCI 1.023 changed to 1.014
    • Practice expense GPCI 1.016 changed to 1.003
    • Malpractice GPCI 1.154 changed to 1.409
  5. January 1, 2023

    RVU23A

    $230.66changed to$222.14

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 4.53 changed to 4.44
    • Work GPCI 1.032 changed to 1.023
    • Practice expense GPCI 1.029 changed to 1.016
    • Malpractice GPCI 0.900 changed to 1.154

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $234.77changed to$230.66

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 4.60 changed to 4.53
    • Malpractice RVU 0.21 changed to 0.22

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $223.38changed to$234.77

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 4.11 changed to 4.60
    • Malpractice RVU 0.22 changed to 0.21
    • Work GPCI 1.026 changed to 1.032
    • Practice expense GPCI 1.020 changed to 1.029
    • Malpractice GPCI 0.918 changed to 0.900

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $218.42changed to$223.38

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 4.04 changed to 4.11
    • Malpractice RVU 0.20 changed to 0.22
    • Work GPCI 1.020 changed to 1.026
    • Practice expense GPCI 1.012 changed to 1.020
    • Malpractice GPCI 0.936 changed to 0.918

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $217.45changed to$218.42

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 4.02 changed to 4.04

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $240.78changed to$217.45

    • Conversion factor 35.8887 changed to 35.9996
    • Work RVU 2.50 changed to 1.75
    • Practice expense RVU 3.85 changed to 4.02
    • Malpractice RVU 0.29 changed to 0.20
    • Practice expense GPCI 1.009 changed to 1.012
    • Malpractice GPCI 0.946 changed to 0.936

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $240.52changed to$240.78

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 3.87 changed to 3.85
    • Work GPCI 1.019 changed to 1.020
    • Practice expense GPCI 1.006 changed to 1.009
    • Malpractice GPCI 0.955 changed to 0.946

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $241.01changed to$240.52

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 3.85 changed to 3.87
    • Malpractice RVU 0.30 changed to 0.29

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $239.81changed to$241.01

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $238.65changed to$239.81

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 3.83 changed to 3.85
    • Work GPCI 1.014 changed to 1.019
    • Practice expense GPCI 1.004 changed to 1.006
    • Malpractice GPCI 0.939 changed to 0.955

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $241.13changed to$238.65

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 4.27 changed to 3.83
    • Malpractice RVU 0.31 changed to 0.30
    • Work GPCI 1.009 changed to 1.014
    • Practice expense GPCI 1.002 changed to 1.004
    • Malpractice GPCI 0.923 changed to 0.939

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $241.13

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$239.95$80.75RVU26D
2026-07-01$239.95$80.75RVU26C
2026-04-01$239.95$80.75RVU26B
2026-01-01$239.95$80.75RVU26A
2025-10-01$205.31$84.30RVU25D
2025-07-01$205.31$84.30RVU25C
2025-04-01$205.31$84.30RVU25B
2025-01-01$205.31$84.30RVU25A
2024-10-01$215.76$86.88RVU24D
2024-07-01$215.76$86.88RVU24C
2024-04-01$215.76$86.88RVU24B
2024-03-09$215.76$86.88RVU24AR
2024-01-01$212.24$85.47RVU24A
2023-10-01$222.14$86.83RVU23D
2023-07-01$222.14$86.83RVU23C
2023-04-01$222.14$86.83RVU23B
2023-01-01$222.14$86.83RVU23A
2022-10-01$230.66$87.16RVU22D
2022-07-01$230.66$87.16RVU22C
2022-04-01$230.66$87.16RVU22B
2022-01-01$230.66$87.16RVU22A
2021-10-01$234.77$87.56RVU21D
2021-07-01$234.77$87.56RVU21C
2021-04-01$234.77$87.56RVU21B
2021-01-01$234.77$87.56RVU21A
2020-10-01$223.38$90.13RVU20D
2020-07-01$223.38$90.13RVU20C
2020-04-01$223.38$90.13RVU20B
2020-01-01$223.38$90.13RVU20A
2019-10-01$218.42$89.31RVU19D
2019-07-01$218.42$89.31RVU19C
2019-04-01$218.42$89.31RVU19B
2019-01-01$218.42$89.31RVU19A
2018-10-01$217.45$102.69RVU18D
2018-07-01$217.45$102.69RVU18C
2018-04-01$217.45$102.69RVU18B
2018-01-01$217.45$102.69RVU18AR1
2017-10-01$240.78$126.35RVU17D
2017-07-01$240.78$126.35RVU17C
2017-04-01$240.78$126.35RVU17B
2017-01-01$240.78$126.35RVU17A
2016-10-01$240.52$126.34RVU16D
2016-07-01$240.52$126.34RVU16C
2016-04-01$240.52$126.34RVU16B
2016-01-01$240.52$126.34RVU16A
2015-10-01$241.01$127.14RVU15D
2015-07-01$241.01$127.14RVU15C
2015-04-01$239.81$126.51RVU15B
2015-01-01$239.81$126.51RVU15A
2014-10-01$238.65$126.44RVU14D
2014-07-01$238.65$126.44RVU14C
2014-04-01$238.65$126.44RVU14B
2014-01-01$238.65$126.44RVU14A
2013-10-01$241.13$121.47RVU13D
2013-07-01$241.13$121.47RVU13C
2013-04-01$241.13$121.47RVU13B
2013-01-01$241.13$121.47RVU13AR

Price 36556 for an earlier date of service

Where the Houston, TX rate applies

Houston, TX is a Medicare payment area, not a city. Our Census mapping connects it to 46 cities and communities in Texas. Some span more than one payment area; confirm with the service ZIP.

Browse all communities in Texas

36556 billing questions

How does 36556 differ from 36555?

Both cover insertion of a non-tunneled, centrally inserted catheter. Use 36556 for patients age 5 years or older and 36555 for children younger than 5.

When is 36558 more appropriate?

36558 describes insertion of a tunneled central venous catheter in a patient age 5 years or older. Use 36556 when the catheter is non-tunneled.

Can ultrasound guidance be reported separately?

CPT 76937 may be reported separately when the required ultrasound guidance service is performed and the documentation supports it.

Should modifier 50 be appended for access on both sides?

No. Medicare's bilateral adjustment does not apply to 36556, and modifier 50 is inappropriate.

Is same-day postoperative care separately payable?

No. The 0-day global period includes same-day preoperative and postoperative care.

Can an assistant or co-surgeon be paid for 36556?

Medicare does not pay an assistant at surgery for this service because of a statutory restriction. Co-surgeons and team surgery are not permitted.

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 36556PPRRVU2026_Oct_nonQPP.csv, line 4,505 (RVU26D)
Geographic factors for Houston, TXGPCI2026.csv, line 102 (RVU26D)

Open CMS sourceHow we calculate rates

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