O25.1 – Malnutrition in pregnancy

ICD-10-CM 2027 diagnosis code · Other maternal disorders predominantly related to pregnancy

Non-billable header

ICD-10-CM code O25.1

Code: O25.1 (claims format: O251)
Description: Malnutrition in pregnancy
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 15. Pregnancy, childbirth and the puerperium (O00-O9A)
Block: O20-O29 Other maternal disorders predominantly related to pregnancy
Parent codes: O25

Billable codes under O25.1

O25.1 is a header code and cannot be used on claims. Choose the most specific code:

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block O20-O29

Excludes2 (not included here):

maternal care related to the fetus and amniotic cavity and possible delivery problems (O30-O48)
maternal diseases classifiable elsewhere but complicating pregnancy, labor and delivery, and the puerperium (O98-O99)

Index terms for O25.1

Entries in the ICD-10-CM alphabetic index that lead to this code:

Pregnancy, complicated by, malnutrition

Related codes in O25

O25.2 – Malnutrition in childbirthBillable
O25.3 – Malnutrition in the puerperiumBillable

Frequently asked questions

What is ICD-10 code O25.1?

O25.1 is the ICD-10-CM code for malnutrition in pregnancy, in the block O20-O29 (Other maternal disorders predominantly related to pregnancy).

Is O25.1 a billable code?

No. O25.1 is a header code with more specific child codes; report one of the billable codes listed above.

What category does O25.1 belong to?

It belongs to category O25 – Malnutrition in pregnancy, childbirth and the puerperium.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.