ICD-10-CM 2027 diagnosis code

O25Malnutrition in pregnancy, childbirth and the puerperium

Not billable — use a more specific code

O25 is a header code, so it can't be reported by itself. Choose one of the 3 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 O25

O25 is the ICD-10-CM diagnosis code for malnutrition in pregnancy, childbirth and the puerperium. It belongs to block O20-O29 (other maternal disorders predominantly related to pregnancy) and chapter 15 (pregnancy, childbirth and the puerperium). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: O25.1 (pregnancy), O25.2 (childbirth) and O25.3 (puerperium).

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 O25

Notes that apply from higher levels

Instructions written at a parent level also apply to O25.

Broader instructions also apply from O20-O29 Other maternal disorders predominantly related to pregnancy and Chapter 15: Pregnancy, childbirth and the puerperium.

Codes whose notes reference O25

O99.2Excludes2

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 O25

Is O25 billable?: No. O25 is a header code. Report one of its more specific subcodes instead.