Abnormal glucose complicating pregnancy

This code identifies the presence of abnormal glucose levels, such as hyperglycemia or hypoglycemia, that are a direct complication of the pregnant state. It signifies a metabolic disturbance in glucose regulation occurring during gestation, distinct from pre-existing diabetes.

Apply this code when a pregnant patient presents with documented abnormal glucose findings that are not gestational diabetes (O24.4-) or pre-existing diabetes (O24.0-O24.3-). This includes conditions like impaired glucose tolerance discovered during pregnancy, or other specified glucose abnormalities. Documentation should clearly state the abnormal glucose and its complicating effect on the pregnancy.

• Do not use for gestational diabetes; refer to codes in category O24.4-.
• Requires physician documentation specifying "abnormal glucose complicating pregnancy" and ruling out other forms of diabetes.
• Sequence this code as a secondary diagnosis when the primary reason for the encounter is related to the pregnancy or a specific complication.