38380-s10-a010-m1 isn't a valid part number according to San Leandro Honda Parts.
I was able to identify the following, similar, part numbers:
38380-S10-A01 CONTROL UNIT, DOOR & TRUNK LOCK KEYLESS
38380-S10-A02 CONTROL UNIT, DOOR & TRUNK LOCK KEYLESS
38380-S10-A03 CONTROL UNIT, DOOR & TRUNK LOCK KEYLESS
So I think you want the 38380-S10-A02 for your 1998. They're rather expensive, at $208.90 from San Leandro (slhondaparts.com - where I usually get parts) or $185.69 from South Bay Honda (hondapartscheap.com - I've never dealt with them).