Gestational diabetes in the puerperium, insulin controlled

This code describes gestational diabetes that persists or is newly diagnosed during the postpartum period (puerperium) and requires insulin for glycemic control. It signifies a metabolic disorder affecting glucose regulation specifically in the period following childbirth, managed through exogenous insulin administration.

Use this code for patients who developed gestational diabetes during pregnancy and continue to require insulin therapy after delivery, or for those diagnosed with gestational diabetes for the first time in the puerperium and are insulin-dependent. Documentation should clearly state "gestational diabetes," "puerperium," and "insulin controlled" or "on insulin."

• Always sequence this code after the primary obstetric code, if applicable, or as the primary diagnosis if the encounter is solely for managing this condition.
• Do not use this code if the patient's diabetes is pre-existing Type 1 or Type 2, even if insulin-controlled, as that would be coded differently.
• Ensure documentation specifies "puerperium" and "insulin controlled" to differentiate from gestational diabetes resolved postpartum or managed by diet/oral agents.