Malnutrition in pregnancy, childbirth and the puerperium (O25) ICD-10-CM
The O25 code range covers malnutrition in pregnancy, childbirth and the puerperium with 8 ICD-10-CM diagnosis codes. 6 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the O25 Range 8 codes · 6 billable
- O25 Malnutrition in pregnancy, childbirth and the puerperiumNon-billable
- O25.1 Malnutrition in pregnancyNon-billable
- O25.10 Malnutrition in pregnancy, unspecified trimester
- O25.11 Malnutrition in pregnancy, first trimester
- O25.12 Malnutrition in pregnancy, second trimester
- O25.13 Malnutrition in pregnancy, third trimester
- O25.2 Malnutrition in childbirth
- O25.3 Malnutrition in the puerperium
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the O25 range.
Child Nutrition Disorders
Disorders caused by nutritional imbalance, either overnutrition or undernutrition, occurring in children ages 2 to 12 years.
Fetal Nutrition Disorders
Disorders caused by nutritional imbalance, either overnutrition or undernutrition, in the FETUS in utero.
Fetus
The unborn young of a viviparous mammal, in the postembryonic period, after the major structures have been outlined. In humans, the unborn young from the end of the eighth week after CONCEPTION until BIRTH, as distinguished from the earlier EMBRYO, MAMMALIAN.
Infant Nutrition Disorders
Disorders caused by nutritional imbalance, either overnutrition or undernutrition, occurring in infants ages 1 month to 24 months.
Malnutrition
An imbalanced nutritional status resulting from insufficient intake of nutrients to meet normal physiological requirement.
Protein-Energy Malnutrition
The lack of sufficient energy or protein to meet the body's metabolic demands, as a result of either an inadequate dietary intake of protein, intake of poor quality dietary protein, increased demands due to disease, or increased nutrient losses.
Severe Acute Malnutrition
Acute form of MALNUTRITION which usually affects children, characterized by a very low weight for height (below -3z scores of the median World Health Organization standards), visible severe wasting, or occurrence of nutritional EDEMA. It can be a direct or indirect cause of fatality in children suffering from DIARRHEA and PNEUMONIA. Do not confuse with starvation, a condition in which the body is not getting enough food, usually for extended periods of time.
About the O25 Code Range
The ICD-10 code O25 series is specifically used to identify cases of malnutrition during pregnancy, childbirth, and the puerperium. These codes help healthcare providers document, track, and manage nutritional deficiencies that occur at different stages of pregnancy and after delivery.
These codes range from O25.1 for general malnutrition in pregnancy to more precise designations such as O25.10 for unspecified trimester, and O25.11 through O25.13 for malnutrition occurring in the first, second, and third trimesters respectively. The synonym malnutrition (calorie) clarifies that these codes cover calorie deficiencies affecting maternal health. Additionally, O25.2 addresses malnutrition complicating childbirth, also known as nutritional deficiency in mother complicating childbirth, while O25.3 codes for malnutrition in the puerperium, the period following childbirth. Using the correct ICD-10 code for malnutrition in pregnancy and related stages ensures precise classification for both clinical care and healthcare reporting purposes.
Questions About This Page
How many billable codes are in the O25 range?
Of the 8 codes in this range, 6 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the O25 range classify?
The range classifies malnutrition in pregnancy, childbirth and the puerperium. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
