KA80.3

ICD-11 MMS 2026-01

Haemorrhage into co-twin

Description

Monozygous twins often share a placenta. Vascular anastomoses within the placenta allow for the transfer of blood between the two fetuses. In some cases, the flow is unbalanced and one fetus (larger, plethoric, and polycythaemic twin) has an overload of fluid, while the other (smaller, hydropic twin) becomes anaemic.

Coding note from above levels

Conditions arising in the perinatal period, even though death or morbidity occurs later, should, as far as possible, be coded to chapter 19, which takes precedence over chapters containing codes for diseases by their anatomical site. For children less than 28 days old, assume that a reported condition developed in the perinatal period, unless the duration is stated and the onset was after the first completed week of life.

Index terms

  • Haemorrhage into co-twin
  • fetal haemorrhage into co-twin

Exclusions from above levels

  • 3A10 – Hereditary haemolytic anaemia
  • 5C58.00 – Crigler-Najjar syndrome
  • 5C58.01 – Gilbert syndrome
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  • 5C58.02 – Dubin-Johnson syndrome
  • LB20.22 – Congenital stenosis or stricture of bile ducts
  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
  • 08 – Certain congenital diseases of the nervous system
  • 20 – Congenital malformations, deformations and chromosomal abnormalities
  • 22 – Injury, poisoning or certain other consequences of external causes
  • 4A01.03 – Transient hypogammaglobulinaemia of infancy
  • 9B71.3 – Retinopathy of prematurity
  • BC43 – congenital cardiomyopathy
  • DA93.0 – Paralytic ileus
  • EA50.Z – Pemphigus neonatorum
  • EH40.00 – Cradle cap
  • http://id.who.int/icd/entity/588616678 – Gastroenteritis or colitis of infectious origin
  • http://id.who.int/icd/entity/609214049 – Congenital gonococcal infection

Sibling codes

  • KA80.0 – Fetal blood loss from vasa praevia
  • KA80.1 – Fetal blood loss from ruptured cord
  • KA80.2 – Fetal blood loss from placenta
  • KA80.4 – Haemorrhage into maternal circulation
  • KA80.5 – Fetal blood loss from cut end of co-twin cord
  • KA80.Y – Other specified fetal blood loss
  • KA80.Z – Fetal blood loss, unspecified

Foundation entity

Haemorrhage into co-twin – http://id.who.int/icd/entity/233333564

Part of: KA80: Fetal blood loss › 19: Certain conditions originating in the perinatal period