Patient presents with complaints possibly indicative of a left adnexal cyst.  Symptoms include left lower quadrant pain, pelvic pain, or lower abdominal pain, potentially accompanied by irregular menstruation, abnormal uterine bleeding, or dysmenorrhea.  On physical examination, tenderness or a palpable mass may be noted in the left adnexal region.  Differential diagnoses considered include ovarian cyst, functional ovarian cyst, corpus luteum cyst, follicular cyst, hemorrhagic ovarian cyst, endometrioma, paraovarian cyst, or other adnexal masses.  Pelvic ultrasound was ordered to evaluate the adnexal structures and confirm the presence, size, and characteristics of the suspected cyst.  Imaging revealed a simple or complex left adnexal cyst measuring [size] cm.  Findings were discussed with the patient, including possible complications such as ovarian torsion, rupture, or pain management.  The patient will be managed conservatively with observation and repeat ultrasound in [timeframe] to monitor cyst size and resolution.  Patient education was provided regarding signs and symptoms of cyst complications, including severe pain, nausea, vomiting, and fever, and instructed to return for evaluation if these occur.  Medical coding considerations include ICD-10 code N83.20 for unspecified ovarian cyst and relevant CPT codes for the pelvic ultrasound and subsequent evaluations.  Plan to continue monitoring for any changes in symptoms or cyst characteristics.