🧮 Clinical calculator · Thrombosis and cardiovascular

ORBIT bleeding risk in atrial fibrillation

Estimates major bleeding risk in atrial fibrillation. The bleeding tool NICE NG196 recommends in place of HAS-BLED.

Free to use, no account needed. Result: ORBIT bleeding risk score. Last reviewed 29 Jul 2026.

The calculator runs in your browser on this page. If it has not appeared, reload the page with JavaScript enabled.

Before you rely on the result: ORBIT estimates bleeding risk only. NICE NG196 states that a bleeding score is typically a prompt to manage modifiable risk factors rather than a reason for withholding anticoagulation.

Related Ocean Article: Atrial Fibrillation (AF).

Further reading: Iron Deficiency Anaemia (IDA) · Oral Anticoagulation · Assessment & Management of Anaemias.

Part of the GPAtlas clinical calculators, each result explained, built by practising UK GPs.