ICD-9 code

Hai!

Can any one help me..
I need ICd-9 CM code for "pain radiating from back to leg"
1. which one is appropriate between 724.3 or 724.4 ?

re: ICD-9 code

Sciatica is a relatively common form of low back and leg pain, but the true meaning of the term is often misunderstood.
Before assigning definitive diagnosis verify with physician.
The same with Thoracic or lumbosacral neuritis or radiculitis.

re: ICD-9 code

724.4