ICD-10-CM 2027 diagnosis code

P07.2Extreme immaturity of newborn

Not billable — use a more specific code

P07.2 is a header code, so it can't be reported by itself. Choose one of the 7 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About P07.2

P07.2 is the ICD-10-CM diagnosis code for extreme immaturity of newborn. It belongs to category P07 (disorders of newborn related to short gestation and low birth weight, not elsewhere classified), block P05-P08 (disorders of newborn related to length of gestation and fetal growth) and chapter 16 (certain conditions originating in the perinatal period). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

Within P07 (disorders of newborn related to short gestation and low birth weight, not elsewhere classified), P07.2 is specifically for extreme immaturity of newborn. Related codes cover Extremely low birth weight newborn (P07.0), other low birth weight newborn (P07.1) and preterm [premature] newborn [other] (P07.3).

To report this condition, pick the subcode that matches the documentation: P07.20 (unspecified weeks of gestation), P07.21 (gestational age less than 23 completed weeks), P07.22 (gestational age 23 completed weeks), P07.23 (gestational age 24 completed weeks), P07.24 (gestational age 25 completed weeks), P07.25 (gestational age 26 completed weeks) and P07.26 (gestational age 27 completed weeks).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under P07.2

Coding notes

Applicable toConditions and synonyms classified to this code

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

Notes that apply from higher levels

Instructions written at a parent level also apply to P07.2.

› From P07 Disorders of newborn related to short gestation and low birth weight, not elsewhere classified

Note

When both birth weight and gestational age of the newborn are available, both should be coded with birth weight sequenced before gestational age

Includes

the listed conditions, without further specification, as the cause of morbidity or additional care, in newborn

Broader instructions also apply from Chapter 16: Certain conditions originating in the perinatal period.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about P07.2

Is P07.2 billable?: No. P07.2 is a header code. Report one of its more specific subcodes instead.