349 Other and unspecified disorders of the nervous system 
349.0 Reaction to spinal or lumbar puncture convert 349.0 to ICD-10-CM 349.1 Nervous system complications from surgically implanted device convert 349.1 to ICD-10-CM 349.2 Disorders of meninges, not elsewhere classified convert 349.2 to ICD-10-CM 349.3 Dural tear 
349.31 Accidental puncture or laceration of dura during a procedure convert 349.31 to ICD-10-CM
349.39 Other dural tear convert 349.39 to ICD-10-CM 349.8 Other specified disorders of nervous system 349.81 Cerebrospinal fluid rhinorrhea convert 349.81 to ICD-10-CM 349.82 Toxic encephalopathy convert 349.82 to ICD-10-CM 349.89 Other specified disorders of nervous system convert 349.89 to ICD-10-CM 349.9 Unspecified disorders of nervous system convert 349.9 to ICD-10-CM