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C7566

C7566Arthrodesis, interphalangeal joints, with or without internal fixation, with autografts (includes obtaining grafts)

HCPCSActiveBETOS P3D

C7566 is a HCPCS Level II code for arthrodesis, interphalangeal joints, with or without internal fixation, with autografts (includes obtaining grafts). It belongs to the Outpatient Prospective Payment System section. Whether Medicare pays it depends on the coverage rule below.

Medicare coverage: Special coverage instructions apply

There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.

From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.

The CMS record for C7566

Long descriptor
Arthrodesis, interphalangeal joints, with or without internal fixation, with autografts (includes obtaining grafts)

The official wording. This is what the code means.

Short descriptor
Fuse finger joints w/grafts

CMS's 28-character form, which is what shows up on a remittance advice.

Added
January 1, 2026

When CMS introduced the code.

BETOS
P3D

Berenson-Eggers Type of Service — CMS's own analytic grouping.

Pricing indicator
99 — Other

Value not established.

Codes adjacent to C7566

HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If C7566 is not quite right, the correct code is very often within a few positions of it.

  • C7556Bronchoscopy, rigid or flexible, with bronchial alveolar lavage and transendoscopic endobronchial ultrasound (ebus) during bronchoscopic diagnostic or therapeutic intervention(s) for peripheral lesion(s), including fluoroscopic guidance, when performed
  • C7557Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation with left heart catheterization including intraprocedural injection(s) for left ventriculography, when performed and intraprocedural coronary fractional flow reserve (ffr) with 3d functional mapping of color-coded ffr values for the coronary tree, derived from coronary angiogram data, for real-time review and interpretation of possible atherosclerotic stenosis(es) intervention
  • C7558Catheter 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 performedterminated
  • C7560Endoscopic retrograde cholangiopancreatography (ercp) with removal of foreign body(s) or stent(s) from biliary/pancreatic duct(s) and endoscopic cannulation of papilla with direct visualization of pancreatic/common bile duct(s)
  • C7562Catheter 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 with intraprocedural coronary fractional flow reserve (ffr) with 3d functional mapping of color-coded ffr values for the coronary tree, derived from coronary angiogram data, for real-time review and interpretation of possible atherosclerotic stenosis(es) intervention
  • C7563Transluminal balloon angioplasty (except lower extremity artery(ies) for occlusive disease, intracranial, coronary, pulmonary, or dialysis circuit), open or percutaneous, including all imaging and radiological supervision and interpretation necessary to perform the angioplasty within the same artery, initial artery and all additional arteries
  • C7564Percutaneous transluminal mechanical thrombectomy, vein(s), including intraprocedural pharmacological thrombolytic injections and fluoroscopic guidance with intravascular ultrasound (noncoronary vessel(s)) during diagnostic evaluation and/or therapeutic intervention, including radiological supervision and interpretation
  • C7565Repair of anterior abdominal hernia(s) (ie, epigastric, incisional, ventral, umbilical, spigelian), any approach (i.e., open, laparoscopic, robotic), recurrent, including implantation of mesh or other prosthesis when performed, total length of defect(s) less than 3 cm, reducible with removal of total or near total non-infected mesh or other prosthesis at the time of initial or recurrent anterior abdominal hernia repair or parastomal hernia repair
  • C7567Bronchoscopy, rigid or flexible, including fluoroscopic guidance when performed, with transbronchial needle aspiration biopsy(s), trachea, main stem and/or lobar bronchus(i), with computer-assisted image-guided navigation
  • C7568Catheter placement in coronary artery(ies) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation, with intravascular doppler velocity and/or pressure derived coronary flow reserve measurement (initial coronary vessel or graft) during coronary angiography including pharmacologically induced stress
  • C7569Percutaneous transluminal coronary angioplasty, single major coronary artery or branch with endoluminal imaging of initial coronary vessel or graft using intravascular ultrasound (ivus) or optical coherence tomography (oct) during diagnostic evaluation and/or therapeutic intervention including imaging supervision, interpretation and report
  • C7570Catheter placement in coronary artery(s) for coronary angiography, including intraprocedural injection(s) for coronary angiography, imaging supervision and interpretation with intraprocedural coronary fractional flow reserve (ffr) with 3d functional mapping of color-coded ffr values for the coronary tree, derived from coronary angiogram data, for real-time review and interpretation of possible atherosclerotic stenosis(es) intervention (list separately in addition to code for primary procedure)
  • C7571Percutaneous transluminal coronary angioplasty, single major coronary artery or branch with percutaneous transluminal coronary lithotripsy
  • C7900Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 15-29 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
  • C7901Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, 30-60 minutes, provided remotely by hospital staff who are licensed to provided mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service
  • C7902Service for diagnosis, evaluation, or treatment of a mental health or substance use disorder, each additional 15 minutes, provided remotely by hospital staff who are licensed to provide mental health services under applicable state law(s), when the patient is in their home, and there is no associated professional service (list separately in addition to code for primary service)

Questions about C7566

What is HCPCS code C7566?

C7566 is a HCPCS Level II code for arthrodesis, interphalangeal joints, with or without internal fixation, with autografts (includes obtaining grafts). It sits in the Outpatient Prospective Payment System section.

Does Medicare cover C7566?

The CMS HCPCS file marks C7566 as "Special coverage instructions apply". There are published conditions attached to this code. Check the applicable coverage policy before billing it: the code being valid is not the same as the service being covered.

HCPCS Level II2026Q3-Jul· effective July 1, 2026