Koebner's phenomenon is characteristic of –
Psoriasis
Pemphigus vulgaris
Pityriasis rosea
Lupus vulgaris
Disorders showing koebner's phenomenon

Lichen planus           Lichen nitidus                         Darrier disease (Keratosis follicularis)
Psoriasis                   Molluscum contigiosum          DLE
Vitiligo                       Warts                                      Pityriasis rubra pilaris

Rare causes are

Erythema multiforme                                          Necrobiosis lipoidica
Hailey-bailey disease                                         Xanthoma
Leukemia & Carcinoma                                      Vasculitis
Lichen sclerosis