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CPT code 36558: Tunneled catheter, age 5 years or older2026 Medicare rate & RVUs in Colorado

Reports placement of a tunneled central venous catheter without an implanted port or pump in a patient age 5 years or older.

CMS RVU26DEffective Oct 1, 2026One payment locality88.2K Medicare services in 2024

In Colorado, Medicare pays $824.17 for 36558 in the office and $233.52 when it’s performed in a hospital or facility.

$824.17Office (non-facility)
$233.52Hospital or facility
+4.6%vs the national office rate ($787.59)

Check a contract rate as a % of Medicare · 36558 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 36558 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Colorado
  2. What 36558 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 36558 covers

This service places a central venous catheter through a subcutaneous tunnel, with the catheter entering a central vein and exiting at a separate skin site. It is used when a patient needs longer-term venous access, such as for extended infusion therapy or repeated treatment. Surgeons and interventional radiologists commonly perform the procedure in a hospital operating room or interventional suite; it may also be performed in another appropriate procedural setting.

Report 36558 for a patient age 5 years or older when the catheter is tunneled and no subcutaneous port or pump is implanted. The record should support the patient’s age, the need for central access, and the tunneled catheter placement. CMS assigns a 10-day global period, including related postoperative visits during that period. When multiple procedures occur in the same session, the highest-valued procedure is paid in full and other procedures are reduced. Bilateral reporting with modifier 50 is paid at 150%. 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 Colorado compares for 36558

Across 109 of 109 payment localities, the office rate for 36558 runs from $690.29 in Arkansas to $1,066.66 in San Benito County, CA. Colorado pays $824.17. The RVUs are the same everywhere; the geographic indexes change the dollars.

36558 in Colorado vs other payment areas
  1. Colorado · this page$824.17
  2. Los Angeles, CA · California$899.38+$75.21
  3. Washington, DC area · District of Columbia$907.84+$83.67
  4. Miami, FL · Florida$845.56+$21.39
  5. Chicago, IL · Illinois$819.41−$4.76
  6. Manhattan, NY · New York$909.58+$85.41
  7. Alaska · Alaska$892.89+$68.72

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

Every other payment area

36558 in every other Medicare payment locality
Payment localityOfficeFacility
AlabamaAlabama$701.24$215.51
ArkansasArkansas$690.29$213.44
ArizonaArizona$765.40$227.49
Bakersfield, CACalifornia$841.27$232.86
Chico, CACalifornia$839.41$231.00
El Centro, CACalifornia$839.52$231.10
Fresno, CACalifornia$839.41$231.00
Hanford, CACalifornia$839.41$231.00

36558 rates by state

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

MEWIVTNHMTNDMNMINYMARIWAIDWYSDIAILINOHPANJCTORNVUTCONEMOKYWVVAMDDECAAZNMKSOKARTNNCSCDCTXLAMSALGAFLAKHI

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.

$690.29

$953.04

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

View every state and territory as a table
36558 office rate range by state
State / territoryOffice rate rangeLocalities
AK$892.891
AL$701.241
AR$690.291
AZ$765.401
CA$839.41–$1,066.6629
CO$824.171
CT$842.551
DC$907.841
DE$778.781
FL$771.22–$845.563
GA$725.11–$802.202
GU$863.071
HI$863.071
IA$722.291
ID$727.001
IL$745.99–$821.794
IN$731.601
KS$717.801
KY$717.341
LA$715.79–$754.122
MA$818.33–$910.992
MD$794.74–$907.843
ME$730.19–$774.162
MI$736.71–$780.682
MN$790.421
MO$701.95–$758.043
MS$696.311
MT$787.551
NC$738.571
ND$774.901
NE$726.821
NH$810.201
NJ$852.38–$897.132
NM$740.711
NV$784.641
NY$750.42–$932.025
OH$734.121
OK$716.851
OR$778.78–$852.962
PA$735.86–$819.692
PR$794.051
RI$808.471
SC$737.531
SD$773.401
TN$721.591
TX$730.58–$821.228
UT$748.421
VA$770.83–$907.842
VI$794.051
VT$770.871
WA$817.11–$931.132
WI$746.901
WV$716.031
WY$782.041

See 36558 in every payment locality

How the 36558 rate is calculated

Each of 36558’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 · 36558

RVUs × geographic indexes × conversion factor

Office or facility?

Work4.48

4.48 RVUs× 1.000 GPCI

Practice expense18.46

18.46 RVUs× 1.000 GPCI

Malpractice0.64

0.64 RVUs× 1.000 GPCI

Adjusted RVUs

23.5800

Conversion factor

$33.4009

Medicare rate

$787.59

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

The exact Colorado inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

4,507

Code
36558
Physician work
4.48
Practice expense
18.46
Malpractice
0.64

GPCI2026.csv

37

Locality
Colorado
Physician work
1.012
Practice expense
1.064
Malpractice
0.781
Office calculation for 36558 in Colorado
ComponentRVULocality factorAdjusted
Physician work4.48× 1.0124.5338
Practice expense18.46× 1.06419.6414
Malpractice0.64× 0.7810.4998
Total RVUs24.6750
Conversion factor× 33.4009

Office rate, Colorado$824.17

Office: (4.48 × 1.012 + 18.46 × 1.064 + 0.64 × 0.781) × $33.4009 = $824.17

Facility: (4.48 × 1.012 + 1.84 × 1.064 + 0.64 × 0.781) × $33.4009 = $233.52

Open 36558 in the RVU calculator

Payment rules and modifiers for 36558

36558 has a 10-day global period: related visits in that window are included in the surgery payment.

CMS payment indicators · 36558

Tunneled catheter, age 5 years or older

RuleCMS valueWhat it means
Global period010Minor procedure: the day of the procedure plus 10 days after are included.
Multiple procedures2Standard reduction: highest-valued procedure at 100%, others at 50%.
Bilateral (modifier 50)1Bilateral with modifier 50 pays 150% of the fee schedule amount.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.
Split (54/55/56)0.10/0.80/0.10Share of the payment for pre-op, the procedure itself, and post-op care.

Global surgery period · 36558

Tunneled catheter, age 5 years or older

10-day global period ends

Oct 11, 2026

Covers Oct 1, 2026 through Oct 11, 2026 (11 days).

Visit on Oct 31, 2026

After the global period ends: visits and procedures are billed normally.

SurgeryVisit
Sep 28, 2026Oct 14, 2026

What modifiers do to the payment

Modifier 50 · payment effect

With and without the modifier

36558 without 50 · national office

$787.59

Tunneled catheter, age 5 years or older

36558-50 · Bilateral: 150%

$1,181.39

Both sides on one line with modifier 50 are paid at 150% of the fee schedule amount (subject to multiple-procedure rules with other procedures).

When to use modifier 50

Codes related to 36558

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

Codes related to 36558
CodeHow it relatesOffice range, Colorado
Same family
36557Tunneled catheter, under age five, no portTunneled catheter without a port or pump for a patient younger than 5 years.$1,322.62
Used instead
36561Port placement, age five or olderTunneled central venous catheter placement with a subcutaneous port, age 5 years or older.$1,005.43
36556Central line insertion, age 5 years or olderCentral venous catheter placement without tunneling for a patient age 5 years or older.$247.89

How 36558 has changed in Colorado

36558 · Office / nonfacility

$824.17

Effective 2026-10-01

The base rate is $32.30 higher than on 2025-10-01, moving from $791.87 to $824.17 (4.1%).

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

    $791.87changed to$824.17

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 4.59 changed to 4.48
    • Practice expense RVU 18.36 changed to 18.46
    • Malpractice RVU 0.63 changed to 0.64
    • Work GPCI 1.008 changed to 1.012
    • Practice expense GPCI 1.053 changed to 1.064
    • Malpractice GPCI 0.827 changed to 0.781

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $840.07changed to$791.87

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 19.07 changed to 18.36
    • Malpractice RVU 0.64 changed to 0.63

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $826.36changed to$840.07

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $879.10changed to$826.36

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 19.82 changed to 19.07
    • Malpractice RVU 0.65 changed to 0.64
    • Work GPCI 1.005 changed to 1.008
    • Practice expense GPCI 1.050 changed to 1.053
    • Malpractice GPCI 0.797 changed to 0.827

  5. January 1, 2023

    RVU23A

    $922.31changed to$879.10

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 20.62 changed to 19.82
    • Malpractice RVU 0.61 changed to 0.65
    • Work GPCI 1.001 changed to 1.005
    • Practice expense GPCI 1.047 changed to 1.050
    • Malpractice GPCI 0.767 changed to 0.797

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $919.73changed to$922.31

    • Conversion factor 34.8931 changed to 34.6062
    • Practice expense RVU 20.34 changed to 20.62

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $855.55changed to$919.73

    • Conversion factor 36.0896 changed to 34.8931
    • Practice expense RVU 17.98 changed to 20.34
    • Malpractice RVU 0.60 changed to 0.61
    • Work GPCI 1.000 changed to 1.001
    • Practice expense GPCI 1.033 changed to 1.047
    • Malpractice GPCI 0.905 changed to 0.767

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $793.66changed to$855.55

    • Conversion factor 36.0391 changed to 36.0896
    • Practice expense RVU 16.52 changed to 17.98
    • Malpractice RVU 0.59 changed to 0.60
    • Practice expense GPCI 1.018 changed to 1.033
    • Malpractice GPCI 1.042 changed to 0.905

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $741.49changed to$793.66

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 15.11 changed to 16.52
    • Malpractice RVU 0.60 changed to 0.59

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $739.95changed to$741.49

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 15.14 changed to 15.11
    • Malpractice RVU 0.62 changed to 0.60
    • Practice expense GPCI 1.015 changed to 1.018
    • Malpractice GPCI 1.066 changed to 1.042

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $807.90changed to$739.95

    • Conversion factor 35.8043 changed to 35.8887
    • Work RVU 4.84 changed to 4.59
    • Practice expense RVU 16.82 changed to 15.14
    • Malpractice RVU 0.66 changed to 0.62
    • Practice expense GPCI 1.011 changed to 1.015
    • Malpractice GPCI 1.090 changed to 1.066

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $810.54changed to$807.90

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 16.78 changed to 16.82
    • Malpractice RVU 0.69 changed to 0.66

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $806.51changed to$810.54

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $801.02changed to$806.51

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 16.71 changed to 16.78
    • Practice expense GPCI 1.008 changed to 1.011
    • Malpractice GPCI 0.981 changed to 1.090

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $818.66changed to$801.02

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 18.52 changed to 16.71
    • Malpractice RVU 0.72 changed to 0.69
    • Practice expense GPCI 1.004 changed to 1.008
    • Malpractice GPCI 0.872 changed to 0.981

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $818.66

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$824.17$233.52RVU26D
2026-07-01$824.17$233.52RVU26C
2026-04-01$824.17$233.52RVU26B
2026-01-01$824.17$233.52RVU26A
2025-10-01$791.87$250.30RVU25D
2025-07-01$791.87$250.30RVU25C
2025-04-01$791.87$250.30RVU25B
2025-01-01$791.87$250.30RVU25A
2024-10-01$840.07$255.75RVU24D
2024-07-01$840.07$255.75RVU24C
2024-04-01$840.07$255.75RVU24B
2024-03-09$840.07$255.75RVU24AR
2024-01-01$826.36$251.58RVU24A
2023-10-01$879.10$259.63RVU23D
2023-07-01$879.10$259.63RVU23C
2023-04-01$879.10$259.63RVU23B
2023-01-01$879.10$259.63RVU23A
2022-10-01$922.31$261.79RVU22D
2022-07-01$922.31$261.79RVU22C
2022-04-01$922.31$261.79RVU22B
2022-01-01$922.31$261.79RVU22A
2021-10-01$919.73$263.23RVU21D
2021-07-01$919.73$263.23RVU21C
2021-04-01$919.73$263.23RVU21B
2021-01-01$919.73$263.23RVU21A
2020-10-01$855.55$273.23RVU20D
2020-07-01$855.55$273.23RVU20C
2020-04-01$855.55$273.23RVU20B
2020-01-01$855.55$273.23RVU20A
2019-10-01$793.66$274.16RVU19D
2019-07-01$793.66$274.16RVU19C
2019-04-01$793.66$274.16RVU19B
2019-01-01$793.66$274.16RVU19A
2018-10-01$741.49$275.33RVU18D
2018-07-01$741.49$275.33RVU18C
2018-04-01$741.49$275.33RVU18B
2018-01-01$741.49$275.33RVU18AR1
2017-10-01$739.95$276.60RVU17D
2017-07-01$739.95$276.60RVU17C
2017-04-01$739.95$276.60RVU17B
2017-01-01$739.95$276.60RVU17A
2016-10-01$807.90$290.99RVU16D
2016-07-01$807.90$290.99RVU16C
2016-04-01$807.90$290.99RVU16B
2016-01-01$807.90$290.99RVU16A
2015-10-01$810.54$293.22RVU15D
2015-07-01$810.54$293.22RVU15C
2015-04-01$806.51$291.76RVU15B
2015-01-01$806.51$291.76RVU15A
2014-10-01$801.02$289.71RVU14D
2014-07-01$801.02$289.71RVU14C
2014-04-01$801.02$289.71RVU14B
2014-01-01$801.02$289.71RVU14A
2013-10-01$818.66$280.31RVU13D
2013-07-01$818.66$280.31RVU13C
2013-04-01$818.66$280.31RVU13B
2013-01-01$818.66$280.31RVU13AR

Price 36558 for an earlier date of service

Where the Colorado rate applies

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

  • Acres Green
  • Aetna Estates
  • Aguilar
  • Air Force Academy
  • Akron
  • Alamosa
  • Alamosa East
  • Allenspark

Browse all communities in Colorado

36558 billing questions

How does 36558 differ from 36557?

Both report a tunneled central venous catheter without a port or pump. 36558 is for patients age 5 years or older; 36557 is for younger patients.

When should 36561 be considered instead?

Use 36561 when the tunneled catheter is placed with a subcutaneous port in a patient age 5 years or older. Code 36558 describes a catheter without an implanted port or pump.

Can tunneling be reported separately from catheter insertion?

No separate service is represented by the tunnel itself here; 36558 reports placement of the tunneled catheter.

What postoperative care is included?

Related postoperative visits during the 10-day global period are included in the procedure payment.

How does CMS handle multiple procedures in the same session?

CMS pays the highest-valued procedure in full and reduces the other procedures to 50% when they are performed in the same session.

What documentation supports an assistant-at-surgery claim?

The record must document medical necessity for the assistant. CMS does not permit co-surgeons or team surgery for this code.

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 36558PPRRVU2026_Oct_nonQPP.csv, line 4,507 (RVU26D)
Geographic factors for ColoradoGPCI2026.csv, line 37 (RVU26D)

Open CMS sourceHow we calculate rates

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