KC22.2

ICD-11 MMS 2026-01

Sclerema neonatorum

Description

Sclerema neonatorum is an uncommon condition which typically affects gravely ill, preterm neonates in the first week of life. It manifests as a diffuse hardening of skin and subcutaneous adipose tissue such that the skin cannot be pitted or picked up and pinched into a fold. Histologically there is minimal inflammation without fat necrosis. It is associated with a high mortality.

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

  • Sclerema neonatorum
  • Underwood's disease
  • newborn scleroderma

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

  • KC22.0 – Subcutaneous fat necrosis of the newborn
  • KC22.1 – Cold panniculitis of the newborn
  • KC22.Y – Other specified neonatal disorders of subcutaneous fat
  • KC22.Z – Neonatal disorders of subcutaneous fat, unspecified

Foundation entity

Sclerema neonatorum – http://id.who.int/icd/entity/1470028414

Part of: KC22: Neonatal disorders of subcutaneous fat › 19: Certain conditions originating in the perinatal period