Get started free

O24.31

Non-billable

Unspecified pre-existing diabetes mellitus in pregnancy

O24.31 is the ICD-10-CM code for Unspecified pre-existing diabetes mellitus in pregnancy. It is a non-billable category code — use a more specific child code such as O24.311 for billing.

Status
Header (non-billable)
Chapter
O00-O9A
Parent
O24.3
Subcodes
4
Edition
FY2026

O00-O9A Pregnancy, childbirth and the puerperium

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code O24.31?
O24.31 is the ICD-10-CM code for "Unspecified pre-existing diabetes mellitus in pregnancy". It falls under O00-O9A Pregnancy, childbirth and the puerperium.
Is O24.31 a billable code?
No — O24.31 is a non-billable header code. Use a more specific child code (such as O24.311) for billing.
What are the subcodes of O24.31?
O24.31 has 4 more specific child codes, including O24.311, O24.312, O24.313.

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

Look up another ICD-10 code or condition

Powered by Eleplan

Free ICD-10 lookup is just the start. Eleplan keeps the whole care plan in one place.

Diagnoses, medications, documents, appointments, and the whole care team — organized and always in sync, with Ellie, your AI care assistant, on top of it. Free to start.

Get started freeSee how Eleplan works →