C7553 HCPCS code: Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right and left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed, catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography with pharmacologic agent administration (eg, inhaled nitric oxide, intravenous infusion of nitroprusside, dobutamine, milrinone, or other agent) including assessing hemodynamic measurements before, during, after and repeat pharmacologic agent administration, when performed

C7553 is the HCPCS Level II code for catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right and left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed, catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography with pharmacologic agent administration (eg, inhaled nitric oxide, intravenous infusion of nitroprusside, dobutamine, milrinone, or other agent) including assessing hemodynamic measurements before, during, after and repeat pharmacologic agent administration, when performed. Its Medicare coverage code is C (Carrier judgment): Coverage is decided by the Medicare contractor (MAC) case by case. The NCCI unit limit is 1 per day on outpatient hospital claims.

Code details

FieldValue
SectionC codes — Outpatient PPS (hospital outpatient temporary codes)
Coverage codeC — Carrier judgment
Pricing indicator11 — Priced using national relative value units (Physician Fee Schedule)
BETOS categoryP2F
Added2023-01-01
Last action effective2024-01-01

NCCI unit limits (MUE)

Claim typeMax units per dayRationale
outpatient hospital claims1Code Descriptor / CPT Instruction
practitioner claims1Code Descriptor / CPT Instruction

What changed for C7553

Frequently asked questions

What is HCPCS code C7553?

C7553 is the HCPCS Level II code for catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation; with right and left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed, catheter placement(s) in bypass graft(s) (internal mammary, free arterial, venous grafts) with bypass graft angiography with pharmacologic agent administration (eg, inhaled nitric oxide, intravenous infusion of nitroprusside, dobutamine, milrinone, or other agent) including assessing hemodynamic measurements before, during, after and repeat pharmacologic agent administration, when performed. Short descriptor: "R&i hrt art/vent ang drg ad".

Does Medicare cover C7553?

Coverage code C — Carrier judgment. Coverage is decided by the Medicare contractor (MAC) case by case.

How many units of C7553 can be billed per day?

1 on outpatient hospital claims; 1 on practitioner claims (NCCI medically unlikely edits).

Related C75 codes

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Next steps

Sources: CMS HCPCS Level II release October 2025; CMS DMEPOS fee schedule; CMS NCCI MUE tables; CMS Medicare utilization (physician and DME supplier files); CMS Medicare Coverage Database articles. Fees are Medicare allowables, not commercial rates. Not billing or legal advice.

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