KA43.0

ICD-11 MMS 2026-01

Birth injury to sternocleidomastoid

Description

Injury to the sternomastoid muscle due to birth usually presents with torticollis (tilt and rotation of head) and a firm, spindle-shaped, immobile mass in the midportion of sternomastoid muscle.

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

  • Birth injury to sternocleidomastoid
  • Sternomastoid injury due to birth injury
  • Sternomastoid haematoma due to birth injury

Exclusions from above levels

  • KA42 – Birth injury to scalp
  • 01 – Certain infectious or parasitic diseases - acquired after birth
  • 02 – Neoplasms
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  • 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
  • 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

  • KA43.1 – Birth injury to external genitalia
  • KA43.2 – Subcutaneous fat necrosis due to birth injury
  • KA43.3 – Birth injury to face
  • KA43.Y – Other specified birth injury to skin or soft tissues
  • KA43.Z – Birth injury to skin or soft tissues, unspecified

Foundation entity

Birth injury to sternocleidomastoid – http://id.who.int/icd/entity/248331155

Allowed postcoordination axes

Part of: KA43: Birth injury to skin or soft tissues › 19: Certain conditions originating in the perinatal period