Prolapsed urethral mucosa

This code represents a condition where the inner lining of the urethra protrudes through the urethral opening. This typically presents as a reddish, donut-shaped mass at the meatus, often causing discomfort, bleeding, or urinary symptoms. It is distinct from a complete urethral prolapse, which involves all layers of the urethral wall.

Use this code for documented cases of prolapsed urethral mucosa, particularly in pediatric patients or postmenopausal women. Supporting documentation should clearly describe the eversion of the urethral lining, often noted during physical examination. This code is appropriate when the diagnosis specifically identifies mucosal prolapse rather than a full-thickness prolapse.

• Differentiate from urethral caruncle (599.3), which is a benign growth, not a prolapse of the mucosa.
• Ensure documentation specifies "mucosa" to avoid confusion with complete urethral prolapse (which would be coded differently in ICD-10-CM).
• Consider any associated symptoms (e.g., dysuria, hematuria) for additional coding, if applicable.