Longitudinal vaginal septum, obstructing, left side

This code describes a congenital anomaly where a fibrous or muscular wall divides the vagina longitudinally, specifically on the left side, and is significant enough to cause an obstruction. This septum can partially or completely separate the vaginal canal, leading to symptoms related to menstrual flow, intercourse, or childbirth.

Use this code when documentation clearly indicates a congenital longitudinal vaginal septum that is obstructing and located on the left side. This typically applies to patients diagnosed with Mullerian duct anomalies, often identified during gynecological examination, imaging studies (e.g., MRI, ultrasound), or surgical exploration.

• Ensure documentation specifies "obstructing" and "left side" to accurately assign this code.
• Distinguish from non-obstructing septa or those on the right side, which have different codes.
• Consider sequencing with other congenital anomalies if present, following ICD-10-CM guidelines for multiple conditions.