KA01.0

ICD-11 MMS 2026-01

Fetus or newborn affected by incompetence of cervix uteri

Description

Cervical incompetence refers to a weakness of the cervix and lower uterine segment, which can lead to recurrent second-trimester or early third-trimester loss of pregnancy due to an inability of the uterine cervix to retain a pregnancy until term. It is associated with a premature shortening of the cervix, dilatation, and opening of the cervical os during pregnancy. Ultrasound changes that suggest cervical incompetence include a cervical length < 1.5 cm, cervical width > 3 cm, and an expanded cervical canal > 8 mm.

Coding note from above levels

These codes are for use when the listed maternal conditions are specified as the cause of confirmed morbidity or potential morbidity which have their origin in the perinatal period (before birth through the first 28 days after birth). Use additional code to identify the condition in the fetus or newborn.

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

  • Fetus or newborn affected by incompetence of cervix uteri
  • Patent cervix complicating pregnancy affecting fetus or newborn

Exclusions from above levels

  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
  • 05 – Endocrine, nutritional or metabolic diseases
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  • 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
  • 3A10 – Hereditary haemolytic anaemia
  • 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

  • KA01.1 – Fetus or newborn affected by premature rupture of membranes
  • KA01.2 – Fetus or newborn affected by oligohydramnios
  • KA01.3 – Fetus or newborn affected by polyhydramnios
  • KA01.4 – Fetus or newborn affected by ectopic pregnancy
  • KA01.5 – Fetus or newborn affected by multiple pregnancy
  • KA01.6 – Fetus or newborn affected by maternal death
  • KA01.7 – Fetus or newborn affected by malpresentation before labour
  • KA01.8 – Fetus or newborn affected by maternal blood loss
  • KA01.Y – Fetus or newborn affected by other specified maternal complication of pregnancy
  • KA01.Z – Fetus or newborn affected by unspecified maternal complication of pregnancy

Foundation entity

Fetus or newborn affected by incompetence of cervix uteri – http://id.who.int/icd/entity/902780087

Part of: KA01: Fetus or newborn affected by maternal complications of pregnancy › 19: Certain conditions originating in the perinatal period