Malnutrition in pregnancy, unspecified trimester

This code signifies a pregnant patient experiencing inadequate nutritional intake or absorption, leading to a state of malnutrition. This diagnosis is applicable when the specific trimester of pregnancy is not documented or is unknown. It indicates a general nutritional deficiency impacting the mother's health during gestation.

Use this code when a pregnant patient is diagnosed with malnutrition, and the medical record does not specify the trimester. Documentation supporting this code includes physician notes indicating "malnutrition in pregnancy," "nutritional deficiency during gestation," or similar statements without trimester detail. This code is appropriate when the severity or type of malnutrition is also unspecified.

• Do not use this code if the trimester is documented; instead, select the appropriate O25.1- subcategory specifying the trimester (e.g., O25.11, O25.12, O25.13).
• Always sequence this code as a secondary diagnosis, following the code for the specific obstetric condition or reason for admission, if applicable.
• If the type of malnutrition is specified (e.g., protein-calorie malnutrition), consider using an additional code from the E40-E46 series to further define the nutritional deficiency.