ICD-10 Code I27.82 – Chronic Pulmonary Embolism (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I27.82 – Chronic pulmonary embolism
What it is
I27.82 identifies chronic pulmonary embolism, meaning a long-standing clot-related obstruction in the pulmonary arteries. Use this code when documentation specifies a chronic, persistent, or old pulmonary embolic condition.
Clinical signs
Clinical features vary; refer to documentation. Commonly described findings include ongoing dyspnea, exercise intolerance, and evidence of chronic pulmonary vascular obstruction on imaging or specialist evaluation.
When to use this code
Use I27.82 when the provider documents chronic pulmonary embolism, chronic thromboembolic disease, or a persistent embolic obstruction in the pulmonary circulation. It may also apply when follow-up notes confirm an established chronic condition rather than an acute event. Check documentation if the record is unclear.
Do not use for
Do not use this code for acute pulmonary embolism or for a history of embolism without current chronic disease. If the note only says “rule out” or gives no chronic confirmation, do not assign I27.82.
Coding tip
Code the chronic condition only when the provider clearly documents it as current, not merely as a past event or suspected diagnosis.