Preterm newborn

Description

Preterm: is less than 37 completed weeks (less than 259 days) of gestation.

Coding note

When both birth weight and gestational age are available, priority of assignment must be given to gestational age.

Coding note from above levels

When both birth weight and gestational age are available, priority of assignment should be given to birth weight.

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.

Exclusions from above levels

KA20 – Disorders of newborn related to slow fetal growth or fetal malnutrition
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

Child codes

KA21.40 – Preterm newborn, gestational age 28 completed weeks
KA21.41 – Preterm newborn, gestational age 29 completed weeks
KA21.42 – Preterm newborn, gestational age 30 completed weeks
KA21.43 – Preterm newborn, gestational age 31 completed weeks
KA21.44 – Preterm newborn, gestational age 32 completed weeks
KA21.45 – Preterm newborn, gestational age 33 completed weeks
KA21.46 – Preterm newborn, gestational age 34 completed weeks
KA21.47 – Preterm newborn, gestational age 35 completed weeks
KA21.48 – Preterm newborn, gestational age 36 completed weeks
KA21.4Z – Preterm newborn, unspecified

Sibling codes

KA21.0 – Extremely low birth weight of newborn
KA21.1 – Very low birth weight of newborn
KA21.2 – Low birth weight of newborn
KA21.3 – Extreme prematurity of newborn

Foundation entity

Preterm newborn – http://id.who.int/icd/entity/1726201225

Part of: KA21: Disorders of newborn related to short gestation or low birth weight, not elsewhere classified › 19: Certain conditions originating in the perinatal period