Cerebrospinal Fluid Rhinorrhea

**Definition:** Discharge of cerebrospinal fluid through the nose. Common etiologies include trauma, neoplasms, and prior surgery, although the condition may occur spontaneously. (Otolaryngol Head Neck Surg 1997 Apr;116(4):442-9)

**Tree numbers:** - C10.597.114.750 - C10.900.300.109.750 - C23.888.592.114.624 - C23.888.852.834.500 - C26.915.300.225.750

**Synonyms:** - Cerebrospinal Rhinorrhea - CSF Rhinorrhea