LB45.4

ICD-11 MMS 2026-01

Accessory ovary

Description

A condition of the ovary, caused by determinants arising during the antenatal period. This condition is characterised by excess ovarian tissue situated near an anatomically correct ovary, which may or may not be connected to the original ovarian tissue.

Index terms

  • Accessory ovary

Exclusions from above levels

  • LD2A – Disorders of sex development leading to sexual ambiguity
  • http://id.who.int/icd/entity/733825440 – Inborn errors of metabolism

Sibling codes

  • LB45.0 – Congenital absence of ovary
  • LB45.1 – 46,XX gonadal dysgenesis
  • LB45.2 – Developmental ovarian cyst
  • LB45.3 – Congenital torsion of ovary
  • LB45.5 – Congenital absence of fallopian tube
  • LB45.6 – Atresia of fallopian tube
  • LB45.7 – Accessory fallopian tube
  • LB45.8 – Embryonic cyst of fallopian tube
  • LB45.9 – Embryonic cyst of broad ligament
  • LB45.Y – Other specified structural developmental anomalies of ovaries, fallopian tubes or broad ligaments
  • LB45.Z – Structural developmental anomalies of ovaries, fallopian tubes or broad ligaments, unspecified

Foundation entity

Accessory ovary – http://id.who.int/icd/entity/1113153554

Allowed postcoordination axes

Part of: LB45: Structural developmental anomalies of ovaries, fallopian tubes or broad ligaments › 20: Developmental anomalies