CPT 93563Cardiology

Njx cgen car cth slctv c ang

CPT code 93563 covers the injection of contrast dye into a specific coronary artery or bypass graft during a cardiac catheterization procedure to visualize blood vessels on imaging. This is an add-on code used when the physician performs selective injections beyond what's included in the base catheterization procedure.

Showing rates for

National Average

Base Medicare rate

$48.84

This calculator gives a typical-case estimate using standard Medicare modifier rules. Actual payment depends on payer policies, documentation, code-specific CMS status indicators, and locality. Verify before billing.

RVU breakdown

Work RVU

PE RVU (NF)

0.35

MP RVU

0.16

Total RVU

1.51

Conversion factor: 32.3465 · Source: CMS MPFS RVU25A · Confidence: High

NCCI bundling edits

Loading bundling edits…

Billing tips

Report 93563 for EACH selective injection beyond those included in the base catheterization code (93454-93461); verify which injections are bundled into your primary code
Impact: Each properly documented additional selective injection generates $48.84 in Medicare revenue; missing 2-3 injections per case can result in $100-150 in lost reimbursement
Document the specific vessel or graft cannulated for each injection (e.g., left main, RCA, SVG to OM, LIMA to LAD) to support multiple units
Impact: Vague documentation like 'selective coronary angiography performed' without vessel identification results in 30-40% denial rate for multiple units
Do not report 93563 with codes 93454-93461 for the injections already included; review the code descriptors carefully as some base codes include 2-3 injections
Impact: Billing for included injections results in denials and potential fraud allegations; typical recovery demand is $48.84 per incorrectly billed unit plus penalties
For bypass graft injections, clearly distinguish between arterial grafts (LIMA, RIMA) and venous grafts (SVG) in documentation as each selective injection is separately reportable
Impact: Proper documentation of 3-4 bypass graft injections can add $146-195 to case reimbursement
Use appropriate modifiers (59, XU) when billing multiple units to prevent NCCI bundling edits; many clearinghouses will auto-deny without modifiers
Impact: Modifier usage increases clean claim rate from 60% to 95% for multiple unit submissions
Reconcile catheterization report with contrast injection log to ensure all selective injections documented by the physician are captured on the claim

Live Field Datano reports yet

Real billers contribute denial patterns and appeal strategies for this code. Once 5+ reports come in, you’ll see live aggregated data here — the only place this exists, free.

Working with CPT 93563?

Get the free Revenue Protection Toolkit — the denial triggers, modifier pitfalls, and bundling conflicts that quietly cost you reimbursement. Instant download.

Help build the field knowledge

MedPayIQ gets smarter as billers contribute. If you've had this code denied, share what happened so others learn from it. Anonymous, no patient info.

Related actions

Frequently asked questions

What is the Medicare reimbursement rate for CPT code 93563 in 2025?

The 2025 Medicare national average reimbursement for CPT 93563 is $48.84 for both facility and non-facility settings, based on 1.51 total RVUs and a conversion factor of 32.3465.

How many times can I bill CPT 93563 per cardiac catheterization procedure?

You can bill 93563 for each selective injection beyond those included in your base cardiac catheterization code. Typical cases involve 2-5 additional selective injections depending on the number of native coronary arteries and bypass grafts assessed. Each unit must be documented with the specific vessel or graft cannulated.

What is the difference between CPT 93563 and 93564?

CPT 93563 is for selective coronary angiography injection during cardiac catheterization, while 93564 is specifically for selective injection during coronary artery bypass graft angiography. Code 93564 is used for bypass graft-specific studies, whereas 93563 applies to native coronary arteries and can also be used for grafts when billed with appropriate base codes.

Can CPT 93563 be billed alone or does it require another code?

CPT 93563 is an add-on code and cannot be billed alone. It must be reported with a primary cardiac catheterization code such as 93454-93461 or 93563-93568. The base code covers the catheter placement and initial injections, while 93563 reports each additional selective injection.

What modifiers are needed when billing multiple units of 93563?

When billing multiple units of CPT 93563, append modifier 59 or XU to units beyond the first to indicate distinct procedural services and prevent NCCI bundling denials. Some payers prefer the more specific X modifier (XU for unusual non-overlapping service). RT/LT modifiers may also be used for laterality when applicable.

What documentation is required to support billing CPT 93563?

Documentation must include specific identification of each vessel or graft selectively cannulated (e.g., 'selective injection of left main coronary artery,' 'selective injection of SVG to OM'), confirmation that contrast was injected, and angiographic images from each injection. The catheterization report should list each selective injection site separately to support the number of units billed.

Which cardiac catheterization base codes include selective injections that should not be separately billed with 93563?

Codes 93454-93461 include varying numbers of selective injections in their base description. For example, 93458 includes injections of the left and right coronary arteries, so you would only bill 93563 for additional selective injections beyond these (such as bypass grafts or repeat injections). Always review the specific base code descriptor to determine which injections are included versus separately reportable.