Is swelling of limb be used as principal diagnosis in insurance?

No, swelling of limb cannot be used as the principal diagnosis in insurance. Swelling of limb is considered a symptom, and it is not specific to any particular underlying condition.

When submitting an insurance claim, the principal diagnosis should be the specific medical condition that is causing the symptoms. For example, if a patient is experiencing swelling in the limb, the principal diagnosis could be deep vein thrombosis (DVT), cellulitis, lymphedema, or any other specific condition that is causing the swelling.