What is correct ICD-9 code for monoparesis of limb?

Other parameters are needed.

344.3 Monoplegia of lower limb.

344.30 Affecting unspecified side.

344.31 Affecting dominant side.

344.32 Affecting unspecified side.

344.4 Monoplegia of upper limb.

344.40 affecting unspecified side.

344.41 Affecting dominant side.

344.42 Affecting nondominant side.

344.5 Unspecified Monoplegia.

So use the one that closely describes the condition.