GA18.2

ICD-11 MMS 2026-01

Theca lutein cyst

Description

Least common of functional ovarian cysts, usually bilateral and coexistent with pregnancy, including molar pregnancies. May be quite large (up to 30 cm), are multicystic and disappear spontaneously.

Index terms

  • Theca lutein cyst

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
  • 18 – Complications of pregnancy, childbirth and the puerperium
Show allHide
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • GA18.0 – Follicular cyst of ovary
  • GA18.1 – Corpus luteum cyst
  • GA18.4 – Para ovarian cyst
  • GA18.5 – Torsion of ovary, ovarian pedicle or fallopian tube
  • GA18.6 – Other or unspecified ovarian cysts
  • GA18.7 – Acquired atrophy of ovary or fallopian tube
  • GA18.Y – Other specified acquired abnormalities of ovary
  • GA18.Z – Acquired abnormalities of ovary, unspecified

Foundation entity

Theca lutein cyst – http://id.who.int/icd/entity/522815984

Allowed postcoordination axes

Part of: GA18: Acquired abnormalities of ovary › 16: Diseases of the genitourinary system