Corpus luteum cyst or hematoma

This code represents a benign, fluid-filled sac that forms on the ovary after an egg has been released during ovulation, or a collection of blood within such a cyst. It typically arises from the corpus luteum, the temporary endocrine structure that develops from the ovarian follicle. These cysts are usually asymptomatic and resolve spontaneously.

Use this code when documentation specifies a corpus luteum cyst or a hematoma within a corpus luteum. This diagnosis is often made incidentally during imaging studies (e.g., ultrasound) or during gynecological examination for other reasons. Ensure the medical record clearly identifies the cyst as originating from the corpus luteum.

• Differentiate from other types of ovarian cysts; documentation must specify "corpus luteum."
• If the cyst is complicated by rupture or torsion, a more specific code for that complication should be considered.
• Do not use for functional ovarian cysts not explicitly identified as corpus luteum.