I28.1
BillableAneurysm of pulmonary artery
HCC Category Mapping
V28HCC 226 — Heart Failure, Specified
0.000V24HCC 85 — Congestive Heart Failure
0.368ESRDHCC 85 — Congestive Heart Failure
0.000RxHCCHCC 184 — Pulmonary Hypertension, Other
0.000What This Code Means
A weakened, bulging area in the wall of a pulmonary artery that can potentially rupture.
Coding Tips
- •Document whether the aneurysm is ruptured or unruptured, as this affects clinical severity
- •Consider if this is related to connective tissue disease, infection, or trauma
Clinical Significance
Pulmonary artery aneurysm is a rare but potentially life-threatening condition where the wall of the pulmonary artery weakens and bulges. Rupture can be fatal. This condition requires ongoing surveillance and may necessitate surgical intervention. It is often associated with connective tissue disorders, pulmonary hypertension, or infection.
Documentation Requirements
- ✓Provider diagnosis of pulmonary artery aneurysm
- ✓Size and location of the aneurysm documented
- ✓Whether the aneurysm is ruptured or unruptured
- ✓Imaging confirmation (CT angiography, echocardiography, MRI)
- ✓Underlying etiology if known (connective tissue disease, infection, pulmonary hypertension)
Excludes 1 — Do NOT code together
Commonly Confused Codes
I28.0 — Arteriovenous fistula of pulmonary vessels; abnormal connection, not an aneurysmI71.9 — Aortic aneurysm, unspecified; different vessel entirelyI28.8 — Other diseases of pulmonary vessels; use for non-aneurysmal pulmonary vascular conditionsI72.9 — Aneurysm of unspecified site; less specific than pulmonary-specific code
Code Hierarchy
└I28Other diseases of pulmonary vessels└I28.1Aneurysm of pulmonary artery
└I28.1Aneurysm of pulmonary artery