I51.2
BillableRupture of papillary muscle, not elsewhere classified
HCC Category Mapping
V28HCC 229 — Unstable Angina and Other Acute Ischemic Heart Disease
0.000V24HCC 86 — Acute Myocardial Infarction
0.274ESRDHCC 86 — Acute Myocardial Infarction
0.000RxHCCHCC 188 — Coronary Artery Disease and Angina
0.000What This Code Means
A tear or break in the papillary muscle, which is a small muscle in the heart that helps control the heart valves.
Coding Tips
- •Verify if this is a complication of myocardial infarction, which may require an additional code
- •Document the location (anterior or posterior) and extent of the rupture when available
Clinical Significance
Rupture of papillary muscle is a catastrophic cardiac event where the muscle that anchors valve leaflets tears, causing acute severe valvular regurgitation and often cardiogenic shock. This most commonly occurs as a complication of myocardial infarction and is a surgical emergency. Mortality without intervention is extremely high.
Documentation Requirements
- ✓Provider must document papillary muscle rupture
- ✓Affected valve — typically mitral valve
- ✓Etiology: usually myocardial infarction, also trauma or endocarditis
- ✓Hemodynamic status and degree of shock
- ✓Degree of resulting valvular regurgitation
- ✓Surgical intervention status: repair, replacement, or planned
Excludes 1 — Do NOT code together
- rupture of papillary muscle as current complication following acute myocardial infarction (I23.5)
Commonly Confused Codes
I51.1 — Rupture of chordae tendineae: the connecting cords rupture, not the muscle itselfI23.5 — Rupture of papillary muscle as current complication of acute myocardial infarction: use within 4 weeks of myocardial infarctionI34.0 — Nonrheumatic mitral valve insufficiency: general regurgitation without papillary muscle ruptureI21.- — Acute myocardial infarction: the underlying cause, coded separatelyI51.89 — Other ill-defined heart diseases: nonspecific, should not be used when papillary muscle rupture is documented
Code Hierarchy
└I51Complications and ill-defined descriptions of heart disease└I51.2Rupture of papillary muscle, not elsewhere classified
└I51.2Rupture of papillary muscle, not elsewhere classified