Gestational diabetes in the puerperium, diet controlled

This code signifies gestational diabetes mellitus that was diagnosed during pregnancy and is now being managed in the postpartum period (puerperium) solely through dietary modifications. The patient's blood glucose levels are controlled without the need for insulin or oral hypoglycemic agents.

Apply this code when a patient with a history of gestational diabetes is seen during the postpartum period (typically up to six weeks after delivery) and their diabetes is currently controlled by diet alone. Documentation should clearly state "gestational diabetes in puerperium" and specify "diet controlled" or similar phrasing indicating no pharmacologic intervention.

• Do not use this code if the patient requires insulin or oral medications for glycemic control in the puerperium; instead, refer to codes for gestational diabetes in puerperium with insulin or other controlled methods.
• Ensure the documentation explicitly states "puerperium" or "postpartum" to differentiate from gestational diabetes during pregnancy.
• This code is typically a secondary diagnosis, with the primary diagnosis often related to the postpartum encounter itself.