2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Peripheral Nervous System 350-359 > Facial Nerve Disorders 351.* > 2006 ICD-9-CM Diagnosis 351.0 Bell's palsy View the most recent version of ICD-9-CM 351.0 Severe or complete loss of facial muscle motor function. This condition may result from central or peripheral lesions. Damage to CNS motor pathways from the cerebral cortex to the facial nuclei in the pons leads to facial weakness that generally spares the forehead muscles. FACIAL NERVE DISEASES generally results in generalized hemifacial weakness. NEUROMUSCULAR JUNCTION DISEASES and MUSCULAR DISEASES may also cause facial paralysis or paresis. A syndrome characterized by the acute onset of unilateral FACIAL PARALYSIS which progresses over a 2-5 day period. Weakness of the orbicularis oculi muscle and resulting incomplete eye closure may be associated with corneal injury. Pain behind the ear often precedes the onset of paralysis. This condition may be associated with HERPESVIRUS 1, HUMAN infection of the facial nerve. 351.0 is a specific code that can be used to specify a diagnosis 351.0 contains 11 index entries View the ICD-9-CM Volume 1 351.* hierarchy Alternate Terminology Facial palsy  Index entries containing 351.0: Bell's palsy, paralysis 351.0 infant 767.5 newborn 767.5 syphilitic 094.89 spasm 351.0 Diplegia (upper limbs) 344.2 facial 351.0 congenital 352.6 Palsy (see also Paralysis) 344.9 Bell's 351.0 newborn 767.5 facial 351.0 newborn 767.5 seventh nerve 351.0 newborn 767.5 Paralysis, paralytic (complete) (incomplete) 344.9 Bell's 351.0 newborn 767.5 facial (nerve) 351.0 birth injury 767.5 congenital 767.5 following operation NEC 998.2 newborn 767.5 nerve - see also Disorder, nerve seventh or facial 351.0 birth injury 767.5 due to injection NEC 999.9 operation NEC 997.09 newborn 767.5 facial 351.0 birth injury 767.5 newborn 767.5 Spasm, spastic, spasticity (see also condition) 781.0 Bell's 351.0