O24

⚠ Non-billable (Header)

Diabetes mellitus in pregnancy, childbirth, and the puerperium

Pregnancy, childbirth and the puerperium (O00-O9A)

⚠️ This is a category header code — not billable. Use a more specific child code below.

✓ No additional coding notes for O24

Child Codes (6)

O24.0Pre-existing type 1 diabetes mellitus, in pregnancy, childbirth and the puerperiumHeader O24.1Pre-existing type 2 diabetes mellitus, in pregnancy, childbirth and the puerperiumHeader O24.3Unspecified pre-existing diabetes mellitus in pregnancy, childbirth and the puerperiumHeader O24.4Gestational diabetes mellitusHeader O24.8Other pre-existing diabetes mellitus in pregnancy, childbirth, and the puerperiumHeader O24.9Unspecified diabetes mellitus in pregnancy, childbirth and the puerperiumHeader

Clinical Description

ICD-10-CM code O24 represents diabetes mellitus in pregnancy, childbirth, and the puerperium. This code falls under the Pregnancy, childbirth and the puerperium (O00-O9A) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

Frequently Asked Questions

What is ICD-10 code O24?

ICD-10-CM code O24 is "Diabetes mellitus in pregnancy, childbirth, and the puerperium". It belongs to the category: Pregnancy, childbirth and the puerperium (O00-O9A).

Is O24 a billable ICD-10 code?

No, O24 is a non-billable header code. A more specific child code must be used for billing.

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Code Information

CodeO24

BillableNo — Header code

CategoryPregnancy, childbirth and the puerperium (O00-O9A)

Excludes10 rule(s)

Excludes20 note(s)

Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)