T82.855A Stenosis of coronary artery stent, initial encounter

Billable ICD-10-CM code, FY2026.

Built from T82.855 with 7th character A (initial encounter).

Applies from T82 Complications of cardiac and vascular prosthetic devices, implants and grafts

Excludes2 (not included here)

• failure and rejection of transplanted organs and tissue (T86.-)

7th character note

• The appropriate 7th character is to be added to each code from category T82

7th character required

• A — initial encounter
• D — subsequent encounter
• S — sequela

Applies from T82.855 Stenosis of coronary artery stent

Applicable to

• In-stent stenosis (restenosis) of coronary artery stent
• Restenosis of coronary artery stent

Code annotations containing back-references to T82.855A

Back-references to T82.855

• Code Also: I21.A9 Other myocardial infarction type ("(acute) stent stenosis (T82.855-)")

Back-references to T82.8

• Type 2 Excludes: I25.710 Atherosclerosis of autologous vein coronary artery bypass graft(s) with unstable angina pectoris ("embolism or thrombus of coronary artery bypass graft(s) (T82.8-)")
• Type 2 Excludes: I26 Pulmonary embolism ("pulmonary embolism due to complications of surgical and medical care (T80.0, T81.7-, T82.8-)")
• Type 1 Excludes: I70.3 Atherosclerosis of unspecified type of bypass graft(s) of the extremities ("embolism or thrombus of bypass graft(s) of extremities (T82.8-)")
• Type 2 Excludes: T80.1 Vascular complications following infusion, transfusion and therapeutic injection ("vascular complications specified as due to prosthetic devices, implants and grafts (T82.8-, T83.8-, T84.8-, T85.8-)")
• Type 2 Excludes: T81.7 Vascular complications following a procedure, not elsewhere classified ("embolism due to prosthetic devices, implants and grafts (T82.8-, T83.81, T84.8-, T85.81-)")

Back-references to T82

• Type 2 Excludes: T78 Adverse effects, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications occurring during or following medical procedures (T80-T88)")
• Type 2 Excludes: T79 Certain early complications of trauma, not elsewhere classified ("complications of surgical and medical care NEC (T80-T88)")
• Type 2 Excludes: T81 Complications of procedures, not elsewhere classified ("complication of prosthetic devices, implants and grafts (T82-T85)")
• Type 2 Excludes: T88 Other complications of surgical and medical care, not elsewhere classified ("complications of devices, implants and grafts (T82-T85)")
• Type 2 Excludes: Z95 Presence of cardiac and vascular implants and grafts ("complications of cardiac and vascular devices, implants and grafts (T82.-)")
• Type 2 Excludes: Z96 Presence of other functional implants ("complications of internal prosthetic devices, implants and grafts (T82-T85)")
• Type 1 Excludes: Z97 Presence of other devices ("complications of internal prosthetic devices, implants and grafts (T82-T85)")

Diagnosis Index entries for T82.855A

• Restenosis › stent › vascular › end stent › within the stent › coronary
• Restenosis › stent › vascular › in stent › coronary vessel
• Stenosis, stenotic (cicatricial) › artery NEC › stent › coronary
• Stenosis, stenotic (cicatricial) › stent › vascular › end stent › within the stent › coronary
• Stenosis, stenotic (cicatricial) › stent › vascular › in stent › coronary vessel

Nearby codes

• T82.848A Pain due to vascular prosthetic devices, implants and grafts, initial encounter
• T82.848D Pain due to vascular prosthetic devices, implants and grafts, subsequent encounter
• T82.848S Pain due to vascular prosthetic devices, implants and grafts, sequela
• T82.85 Stenosis due to cardiac and vascular prosthetic devices, implants and grafts
• T82.855 Stenosis of coronary artery stent
• T82.855A Stenosis of coronary artery stent, initial encounter (this code)
• T82.855D Stenosis of coronary artery stent, subsequent encounter
• T82.855S Stenosis of coronary artery stent, sequela
• T82.856 Stenosis of peripheral vascular stent
• T82.856A Stenosis of peripheral vascular stent, initial encounter
• T82.856D Stenosis of peripheral vascular stent, subsequent encounter