What sort of damage did it do? IF it was cosmetic it might not be covered. I was hit by a car once and the damage wasn't severe enough to be compensated. It will be hard to estimate value of the bike without knowing the make and model.
However, from your description it looks like a Miyata.
To estimate the value of the bike is another matter:
How do I value my bicycle?
If the model year of the bike is less than 1 year you should insure the bike for purchase price. Bikes with earlier model years should be insured for fair market value, or what it would cost you to purchase the same modeled year bike as your original bike. *velosurance.com
You can search Bicycle Blue book
If your bike is in the database it will be a good estimate for it's current insurance value.
I hope this helps.
I checked out Wikipedia and found a guide to Miyata serial numbers to verify the claim.
The serial numbers for Miyata Bicycles Made in Japan Since 1972, according with the first letter on the serial number:
A 1972 B 1973 C1974 D1975 E1976 F 1977 G 1978 H 1979 I 1980 J 1981 K
1982 L 1983 M 1984 N 1985 O 1986 P 1987
Q 1988 R 1989 S 1990 T 1991 U 1992 V 1993 W 1994 X 1995 Y 1996 Z 1997
Miyata is known for making frames for other companies.