Billing code 36405: Scalp venipunctureMedicare rate & RVUs in Guam

Reports physician- or qualified health professional-performed scalp-vein venipuncture in a child younger than 3 years for specimen collection or therapeutic purposes.

CMS RVU26DEffective Oct 1, 20261 payment locality

Medicare pays $25.60 for 36405 in the office in Guam (Hawaii, Guam). Which amount applies depends on the service address.

$25.60Office (non-facility)
$12.69Hospital or facility

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 36405 for the payment locality that covers the ZIP.

On this page 9 sections
  1. Rate in Guam
  2. What 36405 covers
  3. By payment locality
  4. How it’s calculated
  5. Payment rules
  6. Similar codes
  7. Related codes
  8. Billing questions
  9. Sources

What 36405 covers

This code represents venipuncture using a scalp vein in a child younger than 3 years when the procedure requires a physician’s or qualified health professional’s skill. It may be performed to obtain a blood specimen or for a therapeutic purpose, such as gaining venous access to administer treatment. The age and access site distinguish this service from other pediatric venipuncture codes.

Report the service when the documented procedure uses a scalp vein and the child is younger than 3 years; the record should support the site, age, and purpose. This code describes the venipuncture, not laboratory analysis of the specimen. When multiple procedures are performed in the same session, Medicare pays the highest-valued procedure 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.

36405 in Hawaii, Guam

36405 office and facility rates by payment locality
Payment localityOfficeFacility
Hawaii, Guam$25.60$12.69

How the 36405 rate is calculated

Each of 36405’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 · 36405

RVUs × geographic indexes × conversion factor

Work0.30

0.30 RVUs× 1.000 GPCI

Practice expense0.40

0.40 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

0.7200

Conversion factor

$33.4009

Medicare rate

$24.05

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

Payment rules and modifiers for 36405

The CMS indicators that decide how 36405 is paid alongside other services.

CMS payment indicators · 36405

Scalp venipuncture

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
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)1Not paid (statutory restriction).
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical0Physician service: no professional/technical split.

What modifiers do to the payment

Modifier 51 · payment effect

With and without the modifier

36405 without 51 · national office

$24.05

Scalp venipuncture

36405-51 · Second procedure: 50%

$12.03

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

36405 compared with similar codes

Compare codes · National

5 codes, side by side

  • 36405

    Scalp venipuncture0.3 wRVU

    $24.05

  • 36400

    Venipuncture0.37 wRVU

    $27.39+$3.34

  • 36406

    Pediatric venipuncture0.18 wRVU

    $18.37−$5.68

  • 36410

    Skilled venipuncture0.18 wRVU

    $19.04−$5.01

  • 36420

    Venous cutdown0.98 wRVU

    Not priced

How to choose

36400Venipuncture
Both describe skilled venipuncture in a child younger than 3 years, but 36400 identifies femoral or jugular access; 36405 identifies scalp access.
36406Pediatric venipuncture
Use 36406 for a different vein not specified by the pediatric site-specific codes. Use 36405 when the accessed vein is in the scalp.
36410Skilled venipuncture
36410 is for physician- or qualified health professional-performed venipuncture in patients age 3 years or older; 36405 is for scalp access before age 3.
36420Venous cutdown
36420 describes venous access by cutdown in a child younger than 1 year. 36405 describes venipuncture through a scalp vein, not cutdown access.

36405 billing questions

When should 36405 be chosen over 36400 or 36406?

Choose 36405 for a scalp vein in a child younger than 3 years. Codes 36400 and 36406 distinguish other venous sites in this age group.

Can 36405 be reported for routine blood collection?

Use it when the documented scalp-vein access in a child younger than 3 requires physician or qualified health professional skill. Routine venous collection is represented by 36415.

Does 36405 include testing the blood specimen?

No. It represents the venipuncture; laboratory analysis is a separate service when performed and reportable.

How does Medicare handle 36405 with other procedures in the same session?

Under the standard multiple procedure reduction, the highest-valued procedure is paid in full and the others at 50%.

What documentation supports reporting 36405?

Document the child's age, scalp-vein access, and whether the venipuncture was for specimen collection or a therapeutic purpose.

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 36405PPRRVU2026_Oct_nonQPP.csv, line 4,468 (RVU26D)
Geographic factors for Hawaii, GuamGPCI2026.csv, line 46 (RVU26D)

Open CMS sourceHow we calculate rates

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