2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Injury And Poisoning 800-999 > Other And Unspecified Effects Of External Causes 990-995 > Effects Of Reduced Temperature 991.* > 2006 ICD-9-CM Diagnosis 991.5 Chilblains View the most recent version of ICD-9-CM 991.5 Recurrent localized itching, swelling and painful erythema on the fingers, toes or ears, produced by exposure to cold. It is also called pernio. 991.5 is a specific code that can be used to specify a diagnosis 991.5 contains 6 index entries View the ICD-9-CM Volume 1 991.* hierarchy Alternate Terminology Erythema pernio Perniosis  Index entries containing 991.5: Chilblains 991.5 lupus 991.5 Dermatitis (allergic) (contact) (occupational) (venenata) 692.9 congelationis 991.5 Effect, adverse NEC cold (temperature) (weather) 991.9 chilblains 991.5 Erythema, erythematous (generalized) 695.9 pernio 991.5 Pernio, perniosis 991.5