ICD-11 classes
19 Certain conditions originating in the perinatal period
Disorders of newborn related to length of gestation or...
KA21 — Disorders of newborn related to short gestation or low...
KA21.3 — Extreme prematurity of newborn

ICD-11 KA21.3 — Extreme prematurity of newborn

Less than 28 completed weeks (less than 196 completed days) of gestation.

The diagnosis includes nothing.

The diagnosis excludes nothing.

Diagnosis with code KA21.3 contains 8 clarifying diagnoses:

1. KA21.30 — Extreme prematurity of newborn, gestational age less than 22 completed weeks
2. KA21.31 — Extreme prematurity of newborn, gestational age 22 completed weeks
3. KA21.32 — Extreme prematurity of newborn, gestational age 23 completed weeks
4. KA21.33 — Extreme prematurity of newborn, gestational age 24 completed weeks
5. KA21.34 — Extreme prematurity of newborn, gestational age 25 completed weeks
6. KA21.35 — Extreme prematurity of newborn, gestational age 26 completed weeks
7. KA21.36 — Extreme prematurity of newborn, gestational age 27 completed weeks
8. KA21.3Z — Extreme prematurity of newborn, unspecified