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ICD-10-CM 2027

ICD-10 code for transplanted heart atherosclerosis

I25.811

Atherosclerosis of native coronary artery of transplanted heart without angina pectoris

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Atherosclerosis › transplanted heart”. Page updated September 29, 2026.

About coding transplanted heart atherosclerosis

The ICD-10-CM code for transplanted heart atherosclerosis is I25.811 (Atherosclerosis of native coronary artery of transplanted heart without angina pectoris). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on I25.811.

Within I25.81, choose I25.811 (native coronary artery of transplanted heart without angina pectoris) only when documentation doesn't support a more specific option: coronary artery bypass graft(s) without angina pectoris (I25.810) and bypass graft of coronary artery of transplanted heart without angina pectoris (I25.812).

Don't report I25.811 together with the conditions in its Excludes1 note: atherosclerosis of native coronary artery of transplanted heart with angina pectoris (I25.75-).

Use an additional code to identify: chronic total occlusion of coronary artery (I25.82), exposure to environmental tobacco smoke (Z77.22), history of tobacco dependence (Z87.891), occupational exposure to environmental tobacco smoke (Z57.31), tobacco dependence (F17.-) and 1 more.

More specific transplanted heart atherosclerosis codes (official index)

  • bypass graft I25.812 — Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris
  • with angina pectoris
  • native coronary artery I25.811 — Atherosclerosis of native coronary artery of transplanted heart without angina pectoris
  • with angina pectoris

Don't confuse with (Excludes1 for I25.811)

  • atherosclerosis of native coronary artery of transplanted heart with angina pectoris (I25.75-)

Common questions about transplanted heart atherosclerosis ICD-10 codes

What is the ICD-10 code for transplanted heart atherosclerosis?

I25.811 — Atherosclerosis of native coronary artery of transplanted heart without angina pectoris. More specific codes apply when the documentation supports them: I25.812, I25.811.

What is the ICD-10 code for bypass graft transplanted heart atherosclerosis?

I25.812 — Atherosclerosis of bypass graft of coronary artery of transplanted heart without angina pectoris.

What is the ICD-10 code for native coronary artery transplanted heart atherosclerosis?

I25.811 — Atherosclerosis of native coronary artery of transplanted heart without angina pectoris.

Is I25.811 billable?

Yes. I25.811 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can I25.811 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict I25.811 as a principal diagnosis.

Is I25.811 a CC or MCC?

I25.811 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.