Follicular cyst of ovary

This code represents a benign, fluid-filled sac that forms on the surface of an ovary, typically resulting from the failure of a follicle to rupture and release an egg during the menstrual cycle. These cysts are generally asymptomatic and often resolve spontaneously.

Apply this code when documentation clearly indicates a diagnosis of a follicular cyst of the ovary. This diagnosis is often made incidentally during imaging studies (e.g., ultrasound) or pelvic examination. Use this code for both symptomatic and asymptomatic follicular cysts.

• Ensure the documentation specifies "follicular" to differentiate from other ovarian cyst types.
• Do not use for corpus luteum cysts or other functional cysts; these have distinct codes.
• If the cyst is complicated (e.g., ruptured, hemorrhagic), a more specific code reflecting the complication should be considered.