Small for gestational age

Definition

Birth weight below – 2 standard deviations of the mean or below the 10th percentile according to local intrauterine growth charts

Coding note

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

Inclusions

• Small-for-dates

3 subordinate codes

• KA20.00Small for gestational age, symmetrical
• KA20.01Small for gestational age, asymmetrical
• 4B4ZDiseases of the immune system, unspecified

Nearby in Disorders of newborn related to slow fetal growth or fetal malnutrition

• KA20.1Intrauterine growth restriction
• KA20.2Fetal intrauterine malnutrition without mention of small for gestational age
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified