I26.99 — Other pulmonary embolism without acute cor pulmonale
I26.99

What this code means
A pulmonary embolism is a blood clot that travels to the lungs and blocks a pulmonary artery; this code covers other forms without acute heart strain.
Also called: pulmonary embolism, pe, blood clot on the lung.
When this code is used
Used for other pulmonary embolism without acute cor pulmonale.
Where it sits in ICD-10-CM
Code I26.99 belongs to Chapter 9: Diseases of the circulatory system, which covers codes I00–I99 in the FY2027 ICD-10-CM tabular list. The official description above is copied verbatim from the CDC/NCHS FY2027 code file.
Related symptoms
Related anatomy
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Frequently asked questions
What is ICD-10-CM code I26.99?
I26.99 is the ICD-10-CM diagnosis code for “Other pulmonary embolism without acute cor pulmonale”. A pulmonary embolism is a blood clot that travels to the lungs and blocks a pulmonary artery; this code covers other forms without acute heart strain.
When is code I26.99 used?
Used for other pulmonary embolism without acute cor pulmonale. It belongs to Chapter 9 of ICD-10-CM (Diseases of the circulatory system).
This guide explains ICD-10-CM codes in plain language for patients, students and other readers. It is educational information only — not coding, billing or medical advice. The code recorded for any real encounter is assigned from the full clinical documentation by the treating team and qualified coders, and only they can decide which code fits a specific case.
More codes in Chapter 9
I10 — Essential (primary) hypertension
I11.0 — Hypertensive heart disease with heart failure
I11.9 — Hypertensive heart disease without heart failure
I12.0 — Hypertensive chronic kidney disease with stage 5 chronic kidney disease or end stage renal disease
I12.9 — Hypertensive chronic kidney disease with stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease
I13.0 — Hypertensive heart and chronic kidney disease with heart failure and stage 1 through stage 4 chronic kidney disease, or unspecified chronic kidney disease