GA10.B5

ICD-11 MMS 2026-01

Deep ovarian endometriosis

Description

Ovarian endometriosis cyst containing dark stained blood (chocolate fluid) and lined by a pseudocyst wall covered by ectopic endometrium. This cyst can be subdivided according to its size in the following categories: less than 1 cm, 1-3 cm, > 3 cm

Index terms

  • Deep ovarian endometriosis
  • Sampson cyst
  • Sampson tumour
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  • chocolate cyst
  • chocolate cyst of ovary
  • endometrial cyst of ovary
  • endometrial cystoma of ovary
  • endometrioid cystadenoma of ovary
  • endometrioma
  • endometriotic cyst
  • endometriotic cyst of ovary
  • ovarian chocolate cyst
  • ovarian endometrioma
  • ovarian endometriotic cyst
  • Deep endometriosis

Exclusions from above levels

  • GA11 – Endometriosis of the uterus
  • 01 – Certain infectious or parasitic diseases
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 18 – Complications of pregnancy, childbirth and the puerperium
  • 22 – Injury, poisoning or certain other consequences of external causes

Sibling codes

  • GA10.B0 – Endometriosis of the uterosacral ligaments
  • GA10.B1 – Endometriosis of the pelvic side wall
  • GA10.B2 – Endometriosis of rectovaginal septum or vagina
  • GA10.B3 – Endometriosis of fallopian tube
  • GA10.B4 – Superficial ovarian endometriosis
  • GA10.BY – Endometriosis of other sites of the reproductive system
  • GA10.BZ – Endometriosis of unspecified site of reproductive system

Foundation entity

Deep ovarian endometriosis – http://id.who.int/icd/entity/797673629

Allowed postcoordination axes

Part of: GA10.B: Endometriosis of the reproductive system › GA10: Endometriosis › 16: Diseases of the genitourinary system