No longer used as of FIX 4.3. Included here for reference to prior versions.
*** REPLACED FIELD - See:
Appendix 6-F: 5.Replaced Field: PutOrCall (tag 201) and UnderlyingPutOrCall (tag 315) with CFICode (tag 461) [Replaced in FIX 4.3] ***
Indicates whether an Option is for a put or call.