I25.731
BillableAtherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
HCC Category Mapping
V24HCC 88 — Angina Pectoris
0.000ESRDHCC 88 — Angina Pectoris
0.000RxHCCHCC 188 — Coronary Artery Disease and Angina
0.000What This Code Means
Plaque buildup in a nonautologous biological bypass graft causing chest pain with documented coronary artery spasm.
Coding Tips
- •Verify both the graft type (nonautologous biological) and presence of documented spasm are clearly stated
- •Differentiate from autologous grafts which use different code series
Clinical Significance
This code captures atherosclerosis of a nonautologous biological coronary bypass graft with vasospastic angina. The combination of biological graft atherosclerosis and coronary vasospasm presents a unique clinical challenge, as the graft material may have different vasoreactivity properties. Treatment must address both the fixed atherosclerotic disease and the dynamic vasospastic component.
Documentation Requirements
- ✓History of CABG with nonautologous biological graft documented (allograft or xenograft)
- ✓Evidence of atherosclerotic disease in the biological graft
- ✓Documented coronary artery spasm confirmed by clinical presentation or diagnostic testing
- ✓Characteristic vasospastic angina pattern: rest angina, transient ST elevation, nocturnal episodes
- ✓Vasodilator therapy targeting spasm (calcium channel blockers, nitrates)
Excludes 1 — Do NOT code together
- angina pectoris with documented spasm without atherosclerosis of nonautologous biological coronary artery bypass graft(s) (I20.1)
Commonly Confused Codes
I25.711 — Autologous vein CABG with documented spasm; patient's own vein, different graft categoryI25.721 — Autologous artery CABG with documented spasm; patient's own artery, different graft categoryI25.730 — Nonautologous biological CABG with unstable angina; hemodynamic instability, not vasospasmI20.1 — Angina pectoris with documented spasm; no graft-specific atherosclerosis
Code Hierarchy
└I25Chronic ischemic heart disease└I25.7Atherosclerosis of coronary artery bypass graft(s) and coronary artery of transplanted heart with angina pectoris└I25.73Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris└I25.731Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm
└I25.731Atherosclerosis of nonautologous biological coronary artery bypass graft(s) with angina pectoris with documented spasm