MCMedicalCodingSoftware
O24.4

O24.4: Gestational diabetes mellitus

Non-billable headerICD-10-CM

O24.4 is a non-billable header ICD-10-CM code for gestational diabetes mellitus. It cannot be billed on its own: choose one of the more specific child codes below.

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Diabetes mellitus arising in pregnancy
  • Gestational diabetes mellitus NOS

Other codes that can never be billed with O24.4

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • E08Diabetes mellitus due to underlying condition
  • E09Drug or chemical induced diabetes mellitus
  • E10Type 1 diabetes mellitus
  • E11Type 2 diabetes mellitus
  • E13Other specified diabetes mellitus
  • Z86.32Personal history of gestational diabetes
  • O99.81Abnormal glucose complicating pregnancy, childbirth and the puerperium
  • R73Elevated blood glucose level

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Code history

Unchanged in every release from FY2024 to FY2027.

Code to one of these instead O24.4

3 child codes. Green means billable.

Other codes under O24

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.