ICD-10-CM 2027
ICD-10 code for immaturity
Choose a code from the options below based on the documentation.
From the official ICD-10-CM alphabetic index entry “Immaturity (less than 37 completed weeks)”. Page updated September 29, 2026.
About coding immaturity
The official ICD-10-CM index doesn't give a single default code for immaturity; the code depends on the details below.
More specific immaturity codes (official index)
- extreme of newborn (less than 28 completed weeks of gestation) (less than 196 completed days of gestation) (unspecified weeks of gestation) P07.20 — Extreme immaturity of newborn, unspecified weeks of gestation
- gestational age
- 23 completed weeks (23 weeks, 0 days through 23 weeks, 6 days) P07.22 — Extreme immaturity of newborn, gestational age 23 completed weeks
- 24 completed weeks (24 weeks, 0 days through 24 weeks, 6 days) P07.23 — Extreme immaturity of newborn, gestational age 24 completed weeks
- 25 completed weeks (25 weeks, 0 days through 25 weeks, 6 days) P07.24 — Extreme immaturity of newborn, gestational age 25 completed weeks
- 26 completed weeks (26 weeks, 0 days through 26 weeks, 6 days) P07.25 — Extreme immaturity of newborn, gestational age 26 completed weeks
- 27 completed weeks (27 weeks, 0 days through 27 weeks, 6 days) P07.26 — Extreme immaturity of newborn, gestational age 27 completed weeks
- less than 23 completed weeks P07.21 — Extreme immaturity of newborn, gestational age less than 23 completed weeks
- fetus or infant light-for-dates
- lung, newborn P28.0 — Primary atelectasis of newborn
- organ or site NEC
- pulmonary, newborn P28.0 — Primary atelectasis of newborn
- reaction F60.89 — Other specific personality disorders
- sexual (female) (male), after puberty E30.0 — Delayed puberty