🧮 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 7 Oct 2026.

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

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