JA02.1

ICD-11 MMS 2026-01

Incomplete or partial hydatidiform mole

Description

A condition caused by the over-production of cells arising into the placenta during pregnancy. This condition is characterised by a pregnancy with abnormal placental growth in which the chorionic villi become hydropic, slight to moderate trophoblast proliferation and invasion of the uterine tissue within 10-16 weeks after conception, a placental mass, theca lutein cysts, 1-5% persistent trophoblastic disease, small uterine size for dates, and vaginal bleeding, nausea, or vomiting. This condition leads to some fetal development and a missed abortion.

Coding note from above levels

The codes included in this chapter are to be used for conditions related to or aggravated by the pregnancy, childbirth or by the puerperium (maternal causes or obstetric causes)

Index terms

  • Incomplete or partial hydatidiform mole
  • PHM - [partial hydatidiform mole]
  • incomplete hydatidiform mole
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  • partial hydatidiform mole

Exclusions from above levels

  • 2C75.0 – malignant hydatidiform mole
  • GA33 – Recurrent pregnancy loss
  • JA81.1 – Continuing pregnancy after abortion of one fetus or more
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  • 1C14 – Obstetrical tetanus
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 23 – External causes (for mortality)
  • 5A61.0 – Postpartum necrosis of pituitary gland
  • http://id.who.int/icd/entity/882114523 – Mental or behavioural disorders associated with pregnancy, childbirth or the puerperium

Sibling codes

  • JA02.0 – Complete hydatidiform mole
  • JA02.Y – Other specified molar pregnancy
  • JA02.Z – Molar pregnancy, unspecified

Foundation entity

Incomplete or partial hydatidiform mole – http://id.who.int/icd/entity/714020909

Allowed postcoordination axes

Part of: JA02: Molar pregnancy › 18: Pregnancy, childbirth or the puerperium