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O24.3

Non-billable

Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium

O24.3 is the ICD-10-CM code for Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium. It is a non-billable category code — use a more specific child code such as O24.31 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Parent
O24
Subcodes
3
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

Use additional code

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

Frequently asked questions

What is ICD-10 code O24.3?
O24.3 is the ICD-10-CM code for "Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperium". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O24.3 a billable code?
No — O24.3 is a non-billable header code. Use a more specific child code (such as O24.31) for billing.
What are the subcodes of O24.3?
O24.3 has 3 more specific child codes, including O24.31, O24.32, O24.33.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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