10ICD Code Hub

O24.1

Header — not billable

Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium

The ICD-10 code for pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperium is O24.1.

O24.1 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Clinical notes

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

  • Insulin-resistant diabetes mellitus in pregnancy, childbirth and the puerperium

Use additional code

This code represents an underlying condition. When a related manifestation is also present, coding convention calls for an additional code to be listed after this one.

  • code (for):
  • from category E11 to further identify any manifestations
  • injectable non-insulin antidiabetic drugs (Z79.85)
  • long-term (current) use of insulin (Z79.4)

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under O24.1

Related codes in this category